Answer:
63.7 inches
Step-by-step explanation:
half the base is 9 inches, so the equal legs are each
L = √(9² +21²) = 22.8473...
Perimeter = 2(22.8473) + 18 = 63.6946... ≈ 63.7 inches.
When he cubed ,
Result is x³
On further squaring x³, he got = (x³)²

<h3>Therefore, k =
6</h3>
Answer:
4x= 40
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