Question

5. In each of the following figures, calculate the unknown marked angles. A =90 degree B=x C =30drgree.​

Answer 1

Answer:

angle B is equal to 60°

Step-by-step explanation:

angle sum property

sum of the angle in triangle is equal to 180°

A + B +C = 180°

90° + x +30° =180°

x = 60°

Answer 2

60

Step-by-step explanation:

A+B+C =180 ANGLE SUM PROPERTY OF TRIANGLE

90+B+30 =180

B=180-120

B=60