Question

5. The sum of the measure of angle A and angle B is 90°. The measure of angle A is (3x + 6) The measure of angle B is 78° What is the value of x? 00 The measure of two angles in a triangle are shown in the dia​

Answer 1

The value of x in the triangle shown is 2.

Using the information given for our Calculation;

• A + B = 90°

Inputting the values into our expression

(3x + 6) + 78 = 90

collect like terms

3x + 84 = 90

3x = 90 - 84

3x = 6

divide both sides by 3 to isolate x

3x/3 = 6/3

x = 2

Hence, the value of x is 2