Question

Find the measure of angle A.

Answer 1

63°

Explanation:

the sum of the interior angles of a triangle is 180°

find x

68 +x + 53 + x + 79 = 180

2x = 180 - 53 - 79 - 68

2x = - 20

x = -20 : 2

x = -10

find <A

x + 53 =

10 + 53 = 63°