Question

what is the measure of angle a enter your answer as a decimal in the box round only your final answer to the nearest hundredth

Answer 1

ANSWER.

The measure of angle A is 53.13°.

STEP BY STEP

Given,

ABC is a triangle,

In which m∠CBA = 90°, AB = 3 cm, BC = 4 cm and CA = 5 cm,

By the law of sine,

( By cross multiplication )

By substituting the values,

( sin 90° = 1 )

Hence, the measure of angle A is 53.13°.