Angles, Triangles & Circles

Related MCQs

  1. Permanent hardness of water is due to? (CSS 2019 General Science & Ability Paper)

    • Sodium Bicarbonate
    • Calcium Sulphate
    • Calcium bicarbonate
    • None of these

    Submitted by: CSS Exam Desk Team

  2. The position of earth in its orbit, when it is at its greatest distance from the sun causing northern summer is called? (CSS 2009 General Science & Ability Paper)

    • Aphelion
    • Perihelion
    • Perigee
    • Apogee

    Submitted by: CSS Exam Desk Team

  3. One who verbally claims to be a Muslim, but in his Heart is not so, is termed as? (CSS 2019 Islamic Studies Paper)

    • Kafir
    • Zindeeq
    • Murtad
    • None of these

    Submitted by: CSS Exam Desk Team

  4. The second Constituent Assembly of Pakistan Reconstituted on? (CSS 2018 Pakistan Affairs Paper)

    • March 23, 1956
    • May 28, 1955
    • August 14, 1965
    • October 8, 1958

    Submitted by: CSS Exam Desk Team

  5. Slatul Istasqa is the prayer for? (CSS 2015 Islamic Studies Paper)

    • Salat ul Hajat
    • The Prayer for Seeking Rain
    • Prayer performed during a lunar eclipse
    • None of these

    Submitted by: CSS Exam Desk Team

  6. A person who write computer program called? (CSS 2015 General Science & Ability Paper)

    • Programmer
    • Computer Master
    • Scripter
    • None of these

    Submitted by: CSS Exam Desk Team

  7. Who is called the conqueror of Egypt? (CSS 2023 Special Islamic Studies Paper)

    • Saad bin Abi Waqas(رضي الله عنه)
    • Aamr bin Al- Aas(رضي الله عنه)
    • Khalid Bin Waleed(رضي الله عنه)
    • None of these

    Submitted by: CSS Exam Desk Team

  8. PTV started its colored transmission in? (CSS 2017 Pakistan Affairs Paper)

    • 1970
    • 1975
    • 1976
    • 1990

    Submitted by: CSS Exam Desk Team

  9. Where the annual sessions of National Congress and Muslim League were held simultaneously? (CSS 2012 Pakistan Affairs Paper)

    • Delhi
    • Bombay
    • Lucknow
    • None of these

    Submitted by: CSS Exam Desk Team

  10. Hazrat Muhammad (صَلَّی اللہُ عَلَیْہِ وَاٰلِہٖ وَسَلَّم) gave the key of Bait Ullah? (CSS 2009 Islamic Studies Paper)

    • Umara Bin Utba (رضی اللّٰہ عنہ)
    • Hanzla bin Abi Aamir (رضی اللّٰہ عنہ)
    • Usman bin Talha(رضی اللّٰہ عنہ)
    • None of these

    Submitted by: CSS Exam Desk Team

  11. Pakistan 5 th census took place in? (CSS 2023 Pakistan Affairs Paper)

    • 1998
    • 1981
    • 2017
    • 2018

    Submitted by: CSS Exam Desk Team

  12. The border dispute between India and Nepal is? (CSS 2023 Current Affairs Paper)

    • Kalapani
    • Nalapani
    • Lipulekh
    • None of these options

    Submitted by: CSS Exam Desk Team

  13. Night blindness is caused due to the Deficiencies of—? (CSS 2021 General Science & Ability Paper)

    • Vitamin A
    • Vitamin B
    • Vitamin C
    • Vitamin D

    Submitted by: CSS Exam Desk Team

  14. Eugenics is the study of? (CSS 2009 General Science & Ability Paper)

    • Altering human beings by changing their genetic components
    • People of European origin
    • Different races of mankind
    • Genetics of plants

    Submitted by: CSS Exam Desk Team

  15. The author of the book “Reconciliation: Islam, Democracy, and the West”? (CSS 2023 Current Affairs Paper)

    • Ahmad Rashid
    • Stanley Wolpert
    • Benazir Bhutto
    • None of these

    Submitted by: CSS Exam Desk Team

  16. Pakistan purchased Gwadar from? (CSS 2015 Pakistan Affairs Paper)

    • Oman
    • U.A.E
    • Iran
    • None of these

    Submitted by: CSS Exam Desk Team

  17. Khateeb –ul-Anbia as a title of? (CSS 2009 Islamic Studies Paper)

    • Hazrat Idress (علیہ السّلام)
    • Hazrat Ibrahim (علیہ السّلام)
    • Hazrat Yaqoob (علیہ السّلام)
    • Hazrat Shoaib (علیہ السّلام)

    Submitted by: CSS Exam Desk Team

  18. Soil pollution is caused by? (CSS 2023 Special General Science & Ability Paper)

    • Ozone
    • Aerosol
    • Acid rain
    • All of these

    Submitted by: CSS Exam Desk Team

  19. Mohenjo-daro and Harappa were discovered in? (CSS 2015 Pakistan Affairs Paper)

    • 1909
    • 1920
    • 1922
    • None of these

    Submitted by: CSS Exam Desk Team

  20. Khatam-Al-Nabien ls Mentioned in Surah? (CSS 2018 Islamic Studies Paper)

    • Surah Baqarah
    • Surah Baqarah
    • Surah Ahzab
    • Surah Yaseen

    Submitted by: CSS Exam Desk Team

  21. Alshaitaa wal saif means? (CSS 2012 Islamic Studies Paper)

    • spring and autum
    • spring and summer
    • winter and spring
    • winter and summer

    Submitted by: CSS Exam Desk Team

  22. The permanent secretariat of SAARC is established at? (CSS 2011 Current Affairs Paper)

    • Kathmandu
    • Dhaka
    • Delhi
    • Islamabad

    Submitted by: CSS Exam Desk Team

  23. East Asia boundary between Communist & Non-Communist is called _______? (CSS 2018 Current Affairs Paper)

    • Oder Neisse Line
    • 24th Parallel Line
    • Military Demarcation Line
    • None of the above. (Right Answer : Iron Curtain)

    Submitted by: CSS Exam Desk Team

  24. The blue color of the Sky due to? (CSS 2021 General Science & Ability Paper)

    • Reflection of light rays
    • Refraction of light rays
    • Scattering of light ray
    • None of these

    Submitted by: CSS Exam Desk Team

  25. Which Surah Was Being Recited By Muhammad (صلی اللہ علیہ وسلم) At The Time Of Migration? (CSS 2018 Islamic Studies Paper)

    • Surah-Al-Rahman
    • Surah Yasin
    • Surah Al-Hijr
    • None of these

    Submitted by: CSS Exam Desk Team

Angle: An angle is called a combination of two rays (half lines) with a common end point. The common end point is known as vertex. The rays as the sides which are basically legs or arms  of the angle.

  1. Acute angle: An angle whose measure is less than 90o is called an acute angle. These are the smallest being between 0o and 90o.

  2. Obtuse angle: An angle whose measure is greater than 90o but less than 180o is called an obtuse angle.

  3. Right angle: An angle measuring exactly 90°.

  4. Straight angle: A straight angle is an angle whose measure is  exactly 180o.

  5. Reflex angle: An angle measure is greater than 180o but less than 360o is a reflex angle.

  6. Full angle: An angle whose measure is exactly 360o i.e. a full circle.

  7. Allied angle: An angle pair  which is created by transversal line. These are also known as: Co-interior  and Adjacent interior. Explanation: (a) If I draw two parallel lines cut by  a transversal, then allied angles are between the parallel lines and on the same side of transversal. (b) The allied angle theorem states that allied angles are supplementary. (c) A line that meets two or more parallel lines is also known as a transversal line.

  8. Complementary angles: Two angles are complementary when they add up to 90o degrees. They don’t have to be next to each other; just the sum total must be 90o. Example: (i) 60o and 30o are complementary angles. (ii) 5o and  85o are complementary angles.

  9. Supplementary angles: Two angles are supplementary when they add up to 180o. Example: (i) 60o and 120o are supplementary angles. (ii) 93 and  87 are supplementary angles.

  10. Vertical angles: Vertical angles are the angles opposite to each other when two lines cross. They are  always equal.

Triangle: A triangle is a closed figure with three lines and three angles. These three angles always  add up to 180o.

  1. Right angle triangle: A triangle in which the measure of one angle equals 90o degree.

  2. Isosceles triangle: An isosceles triangle has two equal sides. The angles opposite to equal sides are also equal.

  3. Right isosceles triangle: A  right triangle that has 2 sides and 2 angles equal. Explanation: In such a triangle, one angle is of 90o and other two are of 45o each. This triangle satisfies the Pythagorean Theorem.

  4. Scalene triangle: A triangle with all sides of different lengths and different angles.

  5. Acute angle triangle: A triangle in which measures of all angles are less than 90o.

  6. Obtuse triangle: A triangle in which the measure of one triangle is  greater than 90o. 

  7. Equilateral triangle: A triangle having three equal sides and three equal angles of 60o.