Question

I really do not understand this unit can someone please help me.

Just please answer what you know.


IF you cant read questions will be in comments hopefully

Answer 1

3) 441 m² (C)

Explanation:

the square root of 29² - 20² is = 21 (side length of Q

21 is all of the side lengths since it's a square.

so multiply 21 by itself:

21x21= the area of q= 441 m²