1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
raketka [301]
3 years ago
9

Find the curved surface area of 4 pillars if the height of pillars is 7.5m and the radius of the base is 2.5m

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
8 0

Answer:

471.24 m²

Step-by-step explanation:

Formula for curved surface area is;

A = 2πrh

We are given dimensions of a single pillar as;

Height; h = 7.5 m

Radius of base; r = 2.5 m

Thus;

A = 2π × 2.5 × 7.5

A = 117.81 m²

Since there are 4 pillars.

Total curved surface area is;

A_t = 4 × 117.81

A_t = 471.24 m²

You might be interested in
What would be the coordinates of triangle A'B'C' if triangle ABC was dilated by a factor of
notsponge [240]

Answer:

A(0,0)\rightarrow A'(0,0) \\ B(2,0)\rightarrow B'(\frac{2}{3},0) \\ C(0,2)\rightarrow C'(0,\frac{2}{3})

Step-by-step explanation:

The question is as following:

The verticies of a triangle on the coordinate plane are

A(0, 0), B(2, 0) and C(0, 2).

What would be the coordinates of triangle A'B'C' if triangle ABC was dilated by a factor of 1/3 ?

=============================================

Given: the vertices of a triangle ABC are A(0, 0), B(2, 0) and C(0, 2).

IF the triangle is dilated by a factor of k about the origin, then

(x,y) → (kx , ky)

that triangle ABC was dilated by a factor of 1/3 to create the triangle A'B'C'.

It is given that triangle ABC was dilated by a factor of 1/3 to create the triangle A'B'C'.

If a figure dilated by a factor of 1/3 about the origin

So, (x,y)\rightarrow (\frac{1}{3}x,\frac{1}{3}y)

<u>So, The coordinates of the triangle A'B'C' are:</u>

A(0,0)\rightarrow A'(0,0) \\ B(2,0)\rightarrow B'(\frac{2}{3},0) \\ C(0,2)\rightarrow C'(0,\frac{2}{3})

6 0
3 years ago
Which of the following equations are correct !! Choose 2 answers please !! I WILL MARK BRAINLIST
maks197457 [2]

Answer:

B and C are correct

Step-by-step explanation:

17/4 = 4.25

4 and 1/4 = 17/4

3 0
3 years ago
14. On the diagram above, draw a horizontal line through the center of the 16 plots of land.
pshichka [43]

Answer:

The red line shows the division of 16 plots of a land as shown in figure attached.

Step-by-step explanation:

3 0
3 years ago
I also need help with this one so pls help me
Masja [62]

Answer:

the answer is 39

Step-by-step explanation:

you take 300 - 271 and you get 39

6 0
3 years ago
Read 2 more answers
A community is considering raising funds to pay for improvements to the community swimming pool. To measure
salantis [7]

Answer:

it’s b

Step-by-step explanation:

because it’s a convient timing and also they are asking about funds

5 0
3 years ago
Other questions:
  • A farmer is enclosing a rectangular area for a pigpen. He wants the length of the pen to be 15 Ft longer then the width. The far
    11·1 answer
  • What number is the opposite of 6/7?
    7·2 answers
  • What is the first integer to the right of 0 on the number line
    15·1 answer
  • PLEASE HELP ME !!!!​
    10·1 answer
  • (x/2 - 3 1/3) - (x/4 - 1 2/3)
    13·1 answer
  • How many solutions does 3x+5=7x-20 have?
    8·1 answer
  • Students roll a 6-sided number cube and spin the shown spinner. blue blue orange red orange red orange purple What is the probab
    10·1 answer
  • What is 75% of 5000.
    5·2 answers
  • Please help <br> don’t give any fake links pls
    14·1 answer
  • Which is bigger 0.20 or 0.02​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!