Answer:
The area of rectangle is 21 in^2
Step-by-step explanation:
we know that
The area of rectangle is equal to
where
L is the length
W is the width
In this problem we have
substitute
The draw in the attached figure
therefore
The area of rectangle is 21 in^2
Answer:
D
Step-by-step explanation:
The formula for volume of cone is
Where
V is the volume
r is the radius of the circular base
h is the height of the cone
<em>In the diagram shown, we can clearly see that height is 12, radius is 9. We can simply plug them into the formula and get our exact answer (leaving pi as pi):</em>
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<em>correct answer is D</em>