Answer:
22/7 * 8.5 * 8.5 = answer
Answer:
sum of interior angle of a triangle is 180 degree
so,
3x +7 + 2x+7 +3x+6 = 180
8x + 20 = 180
8x = 180 - 20
8x = 160
x = 160/ 8
x = 20
May it will help you
Circumference formula tells you

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The formula to find the area of a circle is

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