Question

help me on this ill give brainliest

Answer 1

Answer:

1071

Step-by-step explanation:

Okay so!

First, we figure out the perimeter of the rectangle: (150 +150 +150 + 150)

We get: 600

Then, we find the circumference of the half circles!

c = $\pi$r^2

c = (3.14)(150)

c = 471

We add the perimeter of the rectangle to the circumference of the circles:

600 + 471

And we get:

1071

Answer 2

Answer:

659.8 m

Find width of the rectangle:

area of rectangle = length * width

10,500 = 150 * width

width = 70 m

* The width is the diameter of the semi circle *

Find radius of semi circle:

r = d/2

r = 70/2

r = 35 m

Find perimeter of semi circle, only the upper segment:

πr

3.14(35)

109.9 m

Perimeter of the entire track:

150 + 150 + 109.9 + 109.9 + 70 + 70

659.8 m