5. In each of the following figures, calculate the unknown marked angles. A =90 degree B=x C =30drgree.
Answers
Answered by
3
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°
Answered by
0
60
Step-by-step explanation:
A+B+C =180 ANGLE SUM PROPERTY OF TRIANGLE
90+B+30 =180
B=180-120
B=60
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