Question

What is the Length of A B? Please

Answer 1

7^2 + 10^2 = AB^2
49 + 100 = AB^2
√149 = AB
AB= 12.2 CM

Answer 2

Thank you for asking this question. Here is your answer:

<A = <C = 50

So ABC is an isosceles triangle. So in this situation AB would be equal to BC

4x = 2x + 6

2x = 6

x = 3

AB = 4x

4 x 3 = 12

So the final answer for this question is 12

If there is any confusion please leave a comment below.