Question

The crayon balloon is made up of a cone and a cylinder. What is the volume, in cubic inches, of the crayon balloon?

A) 69.12
B) 75.40
C) 138.23
D) 276.46

Answer 1

Hey there,

Your correct answer is:

A) 69.12 in³

Explanation:

I just took the test on USATP and it's right. I've added a screenshot to prove it.

Your welcome.

Answer 2

A. 69.12 in.³

Explanation:

Volume of the crayon balloon = volume of the cone + volume of the cylinder

= ⅓πr²h + πr²h

✔️Volume of Cone = ⅓πr²h

r = ½(2) = 1 in.

h = 3 in.

Volume of cone = ⅓*π*1²*3 = 3.142 in.³

✔️Volume of Cylinder = πr²h

r = ½(2) = 1 in.

h = 21 in.

Volume of Cylinder = π*1²*21 = 65.97 in.³

✅Volume of the crayon balloon = 3.14 + 65.973 = 69.115

= 69.12 in.³ (nearest hundredth)