Question

Using the formula, find the angle sum of the given polygons.
(a) pentagon
(b) heptagon (c) dodecagon (Hi​

Answer 1

Answer:

Sum of angle = (X-2) ×180°

Here,X = Number of side

Step-by-step explanation:

A). Pentagon has 5 sides so, sum of angle

= (5-2) ×180°

= 3×180° = 540°

B) Heptagon has 7 sides so,sum of angle

= (7-2)×180°

= 5 × 180° =900°

C) Decagon has 10 sides so,sum of angle

= (10-2) ×180°

= 8×180° = 1440°

Answer 2

Answer:

Ara dear is ma thanks ki kya batt