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
Debora [2.8K]
3 years ago
10

Four cylindrical pillars of a building are to be painted. If the diameter of each pillar is 1.4m and it's height is 6m, find the

cost of painting the curved surfaces of all the pillars at the rate of Rs 10 per.sq.m.​
Mathematics
1 answer:
KatRina [158]3 years ago
8 0

Answer:

Rs. 1056

Step-by-step explanation:

Given: Diameter of each pillar= 1.4m

           Height= 6m

           Cost of painting the curved surfaces of all the pillars at the rate of Rs 10\ per\ m^{2}

First lets find out radius of each pillar.

Radius (r)= \frac{Diameter}{2}

∴ Radius (r)= \frac{1.4}{2} = 0.7\ m

Now, finding area of cylindrical pillar.

Formula; Area of curved surface= 2\pi rh

⇒ Area of curved surface= 2\times \frac{22}{7} \times 0.7\times 6 = 26.4\ m

∵ There are four cylindrical pillars.

∴ Curved surface area of four pillar= 4\times 26.4\ m= 105.6\ m^2

Curved surface area of four pillar is 105.6 m²

Next, finding the cost of painting the pillars.

As given, cost of painting is Rs 10 per m².

∴ Cost of painting 105.6 m²= 10\times 105.6 m^{2} = Rs. 1056

∴ The cost of painting the curved surfaces of all the pillars is Rs.1056.

You might be interested in
A circle with radius of 3cm sits inside a 8 cm x 7cm rectangle what is the area of the shaded region?
Temka [501]

Answer:

You have to say which one is the shaded region the circle or the rectangle

Step-by-step explanation:

5 0
3 years ago
What is the slope of the line represented by the values in the table?
Sonbull [250]
The slope would be 2. Rise over run remember that.
3 0
3 years ago
Read 2 more answers
A recipe uses 2 cups of milk to make 4 servings. If the same amount of milk is used for each serving, how many servings can be m
iren2701 [21]

Answer:

12 servings

Step-by-step explanation:

Please let me know if you want me to write an explanation for my answer :)

7 0
3 years ago
Solve x+2<-4 or -5x<-15
andreev551 [17]
X + 2 < -4
x < -4 -2

•x < -6
4 0
3 years ago
Holly has a budget of $40 per month to spend on movies. She made a table showing the total amount of movie money she will have l
sammy [17]
The slope intercept equation is y=mx + b

3 0
3 years ago
Other questions:
  • VEEL
    12·1 answer
  • What is the sign of the product (–7)(–2)(–5)(1)?
    12·2 answers
  • One week, Blake earned $411.40 at his job when he worked for 17 hours. If he is paid the same hourly wage, how many hours would
    13·1 answer
  • There are 15 students in the school band if they each raise the same amount which inequality describes the amount each person mu
    6·1 answer
  • Need help pleaseee x
    13·2 answers
  • In the figure, if the measure of 28 = 72°, what's the measure of 214?
    8·1 answer
  • What is the name of the parent function for f(x)=2 x-1
    6·1 answer
  • SOMEBODY BRO PLEASE HELP ME OUT. Find the measures of the numbered angles in each kite. DUED BY 11:59pmmmmm
    5·1 answer
  • Find Each Quotient.<br><br>1.6÷13.8
    13·2 answers
  • Select from the drop-down menu to correctly complete the statement.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!