21 and 21
(it's a square)
and yes, a square is a rectangle
Answer:
Step-by-step explanation:
8 over 2
Answer:

Step-by-step explanation:
The formula of an area of a kite:

d₁, d₂ - diagonals
We have A = 120 cm² and d₁ = 16 cm. Substitute:

<em>divide both sides by 8</em>

Answer:
4.0800*10^4
Step-by-step explanation:
4.9*10^4=49000
49000-8200=40800
since we can only have base numbers 1-9 in scientific notation, we need to move the decimal left 4 places:
4.0800*10^4
Hope this helps!