Question

CHECK MY 5 ANSWERS HELP I BEG OF YOU. PLEASE :C

A crater shaped like a cone has a height of 24 yd and a diameter of 72 yd.

What is the volume of the crater?
Use 3.14 to approximate pi and express your final answer in hundredths.

____yd3 (i got 3000)

A package of modeling clay was shaped like a cone with a radius of 24 cm and a height of 6 cm. Miriam used all the clay to make a cylinder with a radius of 16 cm.

What was the height of the cylinder?
Use 3.14 to approximate pi, and express your final answer in tenths.
___cm (i got 225)

Answer 1

Dosha is creating a new dessert that has two layers shaped like cones. The inner cone is frozen ice cream and has a diameter of 12 cm and a height of 6 cm. The outer layer is a thin wafer shell, like an upside-down ice cream cone, with a height of 15 cm and the same diameter as the inner layer. Dosha will inject a cream filling into the space.

What is the volume of the cream filling?
Use 3.14 to approximate pi and express your final answer in hundredths.

___cm3

(i got 837.3 cm3)

Answer 2

Volume of a Cone = (1/3)*(pi)(radius)^2 *(height)

Radius = (diameter)/2 = 72/2 = 36
pi = 3.14
height = 24

so Volume of this Cone = (1/3)*(3.14)*(36)^2 *(24)
= 32555.52

Answer 3

for the first one

Answer 4

Let's do the first one.
Do you know the formula for the volume of a cone?

Answer 5

V=πr2h
3

Answer 6

Correct.
\(\Large V_{cone} = \dfrac{1}{3} \pi r^2 h\)

Here, we have d = 72 yd, so r = 36 yd.
h = 24 yd.

Answer 7

\(\Large V_{cone} = \dfrac{1}{3} (3.14)(36~yd)^2 (24~yd)\)

What number do you get for the volume?

Answer 8

32555.52

Answer 9

is it right @mathstudent55

Answer 10

Correct.

Answer 11

V = 32555.52 yd^3

Answer 12

but it says express your final answer in hundredths

Answer 13

What does that mean?
Does it mean to round off to the nearest hundredth?
If so, it's done.

Answer 14

oh okay then, thanks mate :D

Answer 15

yw