Question

Find the perimeter of the figure below. Use 3.14 for pi

10 m
16 m

I hope this is the last on I need help with!-

I need an answer immediately and i will give a lot of points


╔══╗
╚╗╔╝
╔╝ (¯`v´¯)
╚══`.¸.*when you answer*

Answer 1

72.52

Explanation:

circumference of a circle formula =
`2\pi r`

where r is the radius

the radius is half of diameter, and the diameters for all semicircles are given.

so the radius for the smaller semicircles is 10/2 which is 5

so
`2\pi 5` = 2(3.14)(5) = 31.4

31.4 is the circumference of the whole circle, since we have 2 semicircles with the same radius, we don't need to divide this by 2, we will simply use 31.4 for instead of doing this exact calculation again for the other small semicircle.

for the larger cemicircle, the diameter is 16 so the radius will be 16/2 which is 8

`2\pi 8` = 2(3.14)(8) = 50.24

since 50.24 is the circumference of an entire circle, we will have to divide this by 2 to d=find the circumference of the semicircle.

50.24/2 = 25.12

Now we will simply add up the lengths of the borders,

31.4 + 25.12 + 16 = 72.52

Answer 2

57.7 meters total perimeter for the object.

Explanation:

See the attached worksheet. Break up the object into three circles and one rectangle. Label them to keep track of the work. The object's perimeter is coprised of:

- One side of rectangle R (16 m)

- 1/2 the circumference of circles b and c, each with a radius of 5 m

- 1/2 the circumference of circle a, with a circumference of 8 m.

The perimeter of a circle is 2πr. The perimeter of circles b and c is 31.4 meters in total, which is reduced to (1/2) or 15.7 m total. Circle a contributes 26 meters to the object's perimeter.

The sum of these measurements is (16m) + (15.7m) + (26m) = 57.7 meters total perimeter for the object.