Question

4² + 5² + _² = 21²
please solve this for me​

Answer 1

Answer:

20^2

Step-by-step explanation:

4×4 = 16

5×5= 25

21 ×21 = 441

16 + 25 + 400 = 441

so , 4^2 + 5^2 + 20^2 = 21^2

Hope it helps you

Answer 2

Here is your answer

I hope it helps you