3 years ago

What is the surface area to a cylinder

Mathematics

1 answer:

Maslowich3 years ago

7 0

Answer:

A. 2(Pi)rh+2(Pi)r^2

Step-by-step explanation:

The surface area of a cylinder is the sum of the lateral area and the area of the two circular ends.

The lateral area is the product of the circumference of the cylinder and its height:

lateral area = 2πrh

The area of the two ends is twice the area of each of those circles, so is ...

total end area = 2(πr²)

Then the total surface area of a cylinder is ...

SA = 2πrh +2πr²

You might be interested in

Bill measures the circumference of a circular fish pond to be 28 ft. What is the diameter of the fish pond, rounded to the neare

TiliK225 [7]

Circumference, C = πd

Where d = diameter, d =?, C = 28

28 = π*d

28 = 3.14*d

28 / 3.14 = d

8.92 ≈ d

Diameter is ≈ 8.92 ft.

4 0

3 years ago

Annie and Rich watch a movie. When they start the movie, the time is 2:23 pm. When the movie ends, the time is 3:58 pm. How long

e-lub [12.9K]

Answer:

1 hour and 35 minutes!! :)

Step-by-step explanation:

7 0

3 years ago

If sin θ = 1 over 4 and tan θ > 0, what is the value of cos θ? (1 point)

Dima020 [189]

Answer:

There are two options: b) $\frac{\sqrt{15}}{4}$ , c) $\sqrt{15}$ .

Step-by-step explanation:

By Trigonometry, we know that function tangent is equal to the following identity in terms of functions sine and cosine:

$\tan \theta = \frac{\sin \theta}{\cos \theta}$ (1)

If we know that $\tan \theta > 0$ and $\sin \theta = \frac{1}{4}$ , then $\cos \theta > 0$ . Hence, we have two possibilities: b) $\frac{\sqrt{15}}{4}$ , c) $\sqrt{15}$ .

4 0

3 years ago

-7(5-3x)=-35 what is the x in the problem

Irina-Kira [14]

Answer:

x = 0

Step-by-step explanation:

-7(5-3x)=-35

Divide by -7

-7/-7(5-3x)=-35/-7

5 -3x = 5

Subtract 5 from each side

5-3x-5 = 5-5

-3x=0

Divide by -3

x=0

8 0

3 years ago

Read 2 more answers

A bookstore orders 200 books. The books are packaged in boxes that hold 24 books each. All the boxes the bookstore receives are

guapka [62]

Answer:

The bookstore receive 9 boxes.

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers