Question

3. Find the sum of measures of all interior angles of a polygon with number of sides:
(1) 8
(ii) 12
​

Answer 1

Answer:

I) 8*90

ii)12*90

Step-by-step explanation:

thats the answer

Answer 2

Given,

(i) 8

We know that,

Sum of measures of all interior angles of 8 sided polygons = (2n – 4) × 90⁰

Where,

n = 8

= ((2 × 8) – 4) × 90⁰

= (16 – 4) × 90⁰

= 12 × 90⁰

= 1080⁰ Ans

(ii) 12

We know that,

Sum of measures of all interior angles of 12 sided polygons = (2n – 4) × 90⁰

Where,

n = 12

= ((2 × 12) – 4) × 90⁰

= (24 – 4) × 90⁰

= 20 × 90⁰

= 1800⁰ Ans