Question

Find the side length of the triangle

Answer 1

19

Explanation:

The markings on the triangle means that this is an equilateral triangle (All sides are the same length)

So, we can set the two equations we have equal to each other

4x + 7 = 3x + 10

x + 7 = 10

x = 3

Plug it into either equation

3(3) + 10 = 19