Question

The sides of a triangle are in the ratio of 1:2:2 and the perimeter of the triangle is 15 feet. The length of the shortest side is
2.5 feet
3 feet
5 feet
7.5 feet

Answer 1

3 feet

Answer 2

did you get why?

Answer 3

no

Answer 4

Since the ration is 1:2:2, hence we can say the actual lengths are x, 2x and 2x where x is the common factor which got cancelled out at the time of deriving the ratio.

Perimeter = sum of length of all sides = x + 2x + 2x = 5x (this is given as 15)

hence, 5x = 15 => x = 3

Now, since the smallest of all sides is of length x hence, smallest side has a length of 3 m

Answer 5

thankyou