Question

ABC and XYZ are similar. Find the missing side length.

Answer 1

56

Explanation:

The easiest way to solve this is by cross multiplying. We can make an equation to find the answer of this by simply taking a side from each triangle and then the variable and equal side on the other triangle, shown below.

`let \: \: ? = x`

`(7)/(49) = (8)/(x)`

Now we solve with cross multiplication

`7 x = 392 \\ x = 56`

Now we know the mystery number is 56