Question

3.the diameter of a drum is 150 cm. What is the area of the space where the drum stands

4.Rachel is making a circular table cloth with a radius of 48 dm. How much area of the wall did it occupy?


5.A circular clock with a circumference of 75 cm is attached on a wall. How much area of the wall did it occupy?

Please answer it and do not please joke around
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Answer 1

All you have to do is to find the area of a circle to know the area it will contain.

Explanation:

3. d=150cm= 150/100m=1.5m

r= 1.5/2= 0.75m

since a drum is circular under it will take a circular area

Area of a circle=πr^2

=π×(0.75)^2

=0.5625π = 1.77m^2

4. r=48dm=48/10=4.8m

since the clock is circular it will contact a circular area

Area of a circle= πr^2

=π(4.8)^2

=23.04π= 72.38m^2

5. since it's circular

C=75cm=75/100m=0.75m

Circumference of a circle=2πr

0.75=2πr

r=0.75/2π

r=0.119m

Area of a circle= πr^2

=π×(0.119)^2

=0.045m^2

I hope it helps.