Question

Use the diagram to fill in the blanks
x=
m∠=

Answer 1

x = 21, m∠A = 23°, the measure of angle in the right = 67°

Explanation:

The angles of a triangle sum up to 180°.

Right angles equals to 90°.

Thus, (2x - 19)° + (3x + 4)° + 90° = 180°

=> 5x + 75 = 180

=> 5x = 105

=> x = 21

m∠A=> 2(21) -19 = 23°

the measure of angle in the right=> 3(21) + 4 = 67°