Asked by sanjay
The measure of the side of an equilateral triangle is 6cm. Then area of circle touching all three sides of given triangle is ------cm2 (a) pie (b) 3 pie (c) 12 pie (d) 36pie
Answers
Answered by
Henry
P = 6 + 6 + 6 = 18 cm.
P/2 = 18/2 = 9 cm.
S1/2 = S2/2 = S3/2 = 6/2 = 3 cm.
At = sqrt(9*3*3*3) = 15.6 cm^2 = 5pi = Area of triangle.
Ac > 5pi = 12pi.
P/2 = 18/2 = 9 cm.
S1/2 = S2/2 = S3/2 = 6/2 = 3 cm.
At = sqrt(9*3*3*3) = 15.6 cm^2 = 5pi = Area of triangle.
Ac > 5pi = 12pi.
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