Find The Ratio of C1 and C2 ? if
Let C1 and C2 be the inscribed and circumscribed circles of a triangle with sides 3 cm, 4 cm and 5 cm.
- 16/25
- 4/25
- 9/25
- 9/16
Answer: (2) 4/25
Explanation:-
In the figure-
Triangle is a right triangle-
Therefore, the radius of big circle = 5/2
Then, R = 5/2
Radius of encircle or small circle = Area of the triangle/ semi perimeter
= 1 x 4 x 3 /6 x 2
= 1
Then, the ratio of the area of C1 and the area of C2 = 1^2/(5/2)^2
= 4/25
Hence, the answer is (2) 4/25.
