Question

The figures are similar. Find x
The ratio of the perimeters is 7:10​

Answer 1

Answer- 13 is the Ratio of the perimeters is 7:10

Answer 2

Answer: The value of x from the given figures is 8.4

Step-by-step explanation:  

Since the given figures are similar, hence;

The ratio of their perimeters is equal to the ratio of similar sides as shown;

Since their perimeters are in the ratio of 7: 10 and the sides given are in the ratio of x: 12, hence:

7/10=X/12

CROSS MULTIPLY

10x=7x12

10x=84

therefore, x=84/10=8.4

 

Hence the value of x from the given figures is 8.4