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

x+2x+2x=15

Answer 2

solve for x

Answer 3

Let the x be the length of the shortest side.
Then the length of other two sides will be 2x each since the ratio is 1:2:2.
Perimeter=sum of the lengths of the sides
x+2x+2x=15

Answer 4

sum of the sides give you perimeter let's say length of one side is x
now sum of all the sides = x+2x+2x which is equal to 15
x+2x+2x=15 now solve for x

Answer 5

do i divide first

Answer 6

15/2x?

Answer 7

5x=15
divide by 5 on both the sides
x=3

Answer 8

oh because of like terms

Answer 9

\[x+2x+2x=15....5x=15.....\frac{ 5x }{ 5 }=\frac{ 15 }{ 5 }....x=3\]

Answer 10

yes

Answer 11

awsome

Answer 12

thanks

Answer 13

:)