Respuesta :

ilovehotmoms88
The answer is A - use Pythagoras’ Theorem (a squared + b squared = c squared)

If a is 7cm, then a squared is 49cm
If b is 4cm, then b squared is 16cm

c squared is 49cm + 16cm = 65cm
So, c is the square root of 65cm
Wxlfie

Answer:

A again.

Step-by-step explanation:

This is because

[tex]7^{2} +4^{2} =x^{2} \\ 49+16 = x^{2} \\ 65 = x^{2} \\ \sqrt{65} = x [/tex]

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