Question

Find the missing side of the triangle.​

Answer 1

Answer:

2$\sqrt{10\\}$

Step-by-step explanation:

Because this is a right triangle, we have:

$x^{2} + 3^{2} = 7^{2} (Pytago)\\x^{2} + 9= 49\\x^{2} =40\\x=\sqrt{40} \\x=2\sqrt{10}$

Answer 2

Answer:

x=√40

Step-by-step explanation:

In above figure,

h=7

b=3

p=x=?

Now,

by Pythagoras theorem,

$p = \sqrt{ {h }^{2} - {b}^{2} } \\ = \sqrt{ {7}^{2} - {3}^{2} } \\ = \sqrt{49 - 9} \\ = \sqrt{40}$