Answer:
A) x=sq rt 80
Explanation:
by the Pythagorean theorem
4^2+8^2=x^2
16+64=x^2
80=x^2
x=sq root 80
Pythagorean theorem,
Hypotenuse² = Altitude² + Base²
x² = 8² + 4²
= 64 + 16
= 80
x = √80
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