Question

Question 10

Find m∠1. ____°

Answer 1

62°

Explanation:

the sum of the internal angles in a TRIANGLE is 180°, we have a right angle (90°) and an angle of 28°, we remove the two known angles from 180 and find angle 1

180 - 90 - 28 =

90 - 28 =

62°

Answer 2

Answer: 62

Work Shown

90-28 = 62

Explanation: Focus on the third triangle only. It's a right triangle, so the acute angles must add to 90 degrees. The acute angles are complementary. This is why we subtract the known acute angle (28) from 90 to find the missing acute angle. Notice how 62+28 = 90. Furthermore, 62+28+90 = 180.