20. Find the value of x.
А
60°
40°
3.r -1°
С
B
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4
Answer:
answer is given in the image.
Step-by-step explanation:
I hope it's help you.
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2
Answer:
27 degrees
Step-by-step explanation:
angle sum property of a triangle is equal to 180 degree
60+40+3x-1 =180°
60+40-1+3x =180
99+3x=180°
3x=180°-99°
3x=81°
x=81/3
x=27°
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