Question

Find the missing angles2

Answer 1

Explanation:

middle angle is 90° as shown in figure.

(8k+1)°+90°+49°=180°(by straight angle )

8k+1+90+49=180°

8k+91+49=180°

8k+140=180°

8k+=180°+140°

8k=40°

k=40°/8

k=5

(8k+1)°=8×5+1=41°