alleryHow many diagonals does a heptagon have?
A28
B14
C7
D21
Answer & Solution
Correct answer: B. 14
Diagonals number n(n − 3)/2 = 7 × 4 / 2 = 14.
Keep practising Surface Areas and Volumes
Browse all Surface Areas and Volumes questions for SSC CGL, or explore more Quantitative Aptitude topics.
Related questions
What is the length of the space diagonal of a cube of edge 6 cm?A triangle has area 84 cm² and base 14 cm. What is its height?A circular park of radius 14 m has a 7 m wide path around it. What is the path's area? (TaA room 6 m by 4 m is paved with square tiles of side 50 cm. How many tiles are needed?A rectangle has perimeter 46 cm and length 15 cm. What is its area?Who is credited with the formula for a triangle's area from its three sides?Sides 9 cm, 10 cm and 17 cm form a triangle. What is its semi-perimeter?A wheel has diameter 70 cm. How far does it travel in 100 full turns? (Take π = 22/7)