Answer:
OPTION B - 25
Step-by-step explanation:
We know that:



The given problem uses these results to arrive at the answer.

Now, 
Now, 
⇒ 5² = 25.
∴ The answer is 25. (Option B)
Length = ((8^2)-(5^2))^(1/2) = (64-25)^0.5 = 39^0.5
Therefor width = 5(39^0.5)
Approx = 31.22
Its in the tenths place if thats what your asking
3
Mark brainliest please
Hope this helps you
Step-by-step explanation:
cos70°=6/x
x=6/cos70°
x=17,54
x=y
tan70°=h/6
h=tan70°×6
h=16,48