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kozerog [31]
3 years ago
13

What is the surface area of a right cylinder which has a base with radius 9 units and has a height of 12 units?

Mathematics
1 answer:
insens350 [35]3 years ago
5 0
Surface area = (9*2) * pi * 12
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Answer:

Step-by-step explanation:

Use the rise over run formula

y2-y1/x2-x1

1992-1990/3317-3038

2/-279

-139.5

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PLEASE HELP ITS A QUIZ <br> WILL MARK BRAINLIEST (not if you get it wrong)
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Step-by-step explanation:

28+17+17+15=76

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Find the perimeter and area of the polygon shown below.<br> 8ft<br> 15 ft<br> 17ft<br> 16 ft
BabaBlast [244]
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3 years ago
Find the volume of a right circular cone that has a height of 18.9 in and a base with a
Dmitriy789 [7]

Answer:

The volume of the cone is:

  • <u>112.6 cubic inches.</u>

Step-by-step explanation:

You should know that the volume of a straight circular cone is equal to:

  • Cone volume = (1/3) PI * r ^ 2 * h

Where:

<em>r = radius. </em>

<em>h = height. </em>

Since the radius and diameter are not provided in the exercise but the circumference, the circumference formula should be used and the diameter must be cleared:

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When clearing you get:

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By replacing the data you get:

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  • Diameter = 4.77 inches.

Since the radius is equal to half the diameter, then the diameter is equal to 2,385 inches, now having the value of radius we proceed to replace in the volume formula:

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3 0
3 years ago
I WILL GIVE YOU BRAINLIEST IF YOU ANSWER THIS CORRECTLY!!!!!!!
postnew [5]

Step-by-step explanation:

a)42

b) triangle and Parallelogram

c) for triangle: (base× height)÷2

for Parallelogram: (base×height)

d) triangle: (6×6)÷2=18

Parallelogram: 6×4=24

18+24=42

if it is unclear or you need more explanation, ask freely. if the answer is correct please give me brainliest i need 3 brainliests

6 0
3 years ago
Read 2 more answers
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