Question

Given the two figures are similar, calculate the value of BR.

I need this pretty quickly so any help is welcomed thank you!

Answer 1

BR = 10

Explanation:

Given that the 2 figures are similar then the ratios of corresponding sides are equal, that is

`(BR)/(PO)` =
`(BN)/(PQ)` ← substitute values

`(2x)/(4)` =
`(5)/(2)` ( cross- multiply )

4x = 20 (divide both sides by 4 )

x = 5

Hence

BR = 2x = 2 × 5 = 10

Answer 2

10

Explanation:

From the smaller to the larger picture, the multiplication factor is 2.5.

I found this by comparing PQ to BN. From 2 to 5 is times 2.5.

Using that you can scale PO=4 to 10, since 4*2.5 = 10.