The area of a triangle inscribed in a circle is 75root15 sq.cm. If the sides of a triangle are 20,30 ,40cm respectively,then find the radius of the circle
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2
Area of triangle = πr²
=> 75√15 = 3.14 * r²
=> r = (75√15 ÷3.14)½
= r = 9.6 cm
=> 75√15 = 3.14 * r²
=> r = (75√15 ÷3.14)½
= r = 9.6 cm
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0
Answer:
(5√15 )/3
Step-by-step explanation:
area of triangle inscribed in a circle = radius of circle * semi perimeter of the triangle
75√15 = r * (20+30+40)/2
75√15 = r * 45
r = (75√15)/45
r = (5√15) / 3
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