All categories

3 years ago

Find the total surface area of a cylinder with a height of 5 cm and radius of 2 cm. Leave your answer in terms of π.

Mathematics

2 answers:

elena-s [515]3 years ago

8 0

Answer:

A.28π cm2

Area of a cylinder formula

A=2*pi*r*h+2*pi*r^2

mr Goodwill [35]3 years ago

6 0

Answer:

The total surface area of a cylinder is $28\pi \ cm^2$ .

Step-by-step explanation:

We have,

Height of a cylinder, h = 5 cm

Radius of a cylinder, r = 2 cm

It is required to find the total surface of a cylinder. The formula of the total surface area of cylinder is given by:

$A=2\pi r h+2\pi r^2\\\\A=2\pi r (r+h)\\\\A=2\pi \times 2 (2+5)\\\\A=28\pi \ cm^2$

So, the total surface area of a cylinder is $28\pi \ cm^2$ . Hence, the correct option is (A).

You might be interested in

1and 6/6 equal or not equal

Vikki [24]

1 and 6/6 are equal because when you turn 6/6 into a whole number, it becomes 1

6 0

3 years ago

Please help on 10 11 and 12

erastova [34]

Try multiplaying all sides

4 0

3 years ago

Marlo uses 252 lb of gravel to cover a garden plot of 36 ft2. How many pounds of gravel does it take to cover one square foot? H

irakobra [83]

The area and the amount of gravel are illustrations of proportions.

7 lb will cover an area of 1 square foot, while 315 lb will cover an area of 45 square feet.

The given parameters are:

$252\ lb= 36ft^2$

The number of pound for an area of <em>1 square foot </em>is calculated as follows:

$x = 1ft^2$

So, we have:

$x = 1ft^2$

$252\ lb= 36ft^2$

Cross multiply

$x \times 36 = 252 \times 1$

Divide both sides by 36

$x = 7lb$

The area to be covered with 315lb gravel is calculated as follows:

$315lb = y$

So, we have:

$315lb = y$

$252\ lb= 36ft^2$

Cross multiply

$y \times 252 = 36 \times 315$

$y \times 252 = 11340$

Divide both sides by 252

$y = 45$

Hence, 7 lb will cover an area of 1 square foot, while 315 lb will cover an area of 45 square feet.

Read more about proportions at:

brainly.com/question/13114933

6 0

3 years ago

Find the Value of X. Help me Please

Jobisdone [24]

Answer:

x = 144

Step-by-step explanation:

Sum of all angles of n-sided polygon = 180 * (n - 2)

Sum of all angles of 8-sided polygon = 180 * 6 = 1080

x + 129 + 132 + 136 + 124 + 141 + 158 + 116 = 1080

x + 936 = 1080

x = 1080 - 936

x = 144

8 0

3 years ago

ANSWER QUICK PLZ

Bad White [126]

Answer:

see below

Step-by-step explanation:

at least one x-intercept - where it crosses the x axis- They both have at least one x intercept

at least one y-intercept - where it crosses the y axis- they both have at least one

an oblique asymptote or slant asymptote- when the degree of the polynomial in the numerator is higher than the denominator - this is true

a vertical asymptote - they both have a vertical asymptote

the domain - is all real values except x = -3 in one case and x=3 in the other

3 0

3 years ago

Read 2 more answers