Math, asked by ritesh4791, 11 months ago

and the square.
The area of a circle inscribed in an equilateral triangle is 154 cm
Find the perimeter of the triangle. Take V3 =1.73.
The radius of the wheel of a vehicle is 42 cm How many ravali

Answers

Answered by balakrishna40
1

\pi {r}^{2}  = 154

 \frac{22}{7}  \times  {r}^{2}  = 154

r = 7

 \frac{a}{ \sin(60) }  = 2r

a = 2 \times 7 \times  \frac{ \sqrt{3} }{2}

a = 7 \sqrt{3}

perimeter = 3a = 3 \times 7 \sqrt{3}

 = 21 \sqrt{3}  = 21 \times 1.73

36.33cm

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