It is given the area of a triangle is A. The value of its perimeter, inradius, circumradius and the average of the lengths of the medians are P, r, R and d respectively. The ratio A : P is equal to
Show answer & explanation
Correct answer: C
Explanation
Correct Answer is option 3 i.e. r : 2
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Concept |
Understanding |
Application |
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A = (r × s) A = Area of triangle r = Inradius of triangle s = semi perimeter of triangle |
Given: The value of its perimeter, inradius, circumradius and the average of the lengths of the medians are P, r, R and d respectively. |
s = P/2 ⇒ A = r × (P/2) ⇒ A : P = r : 2
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