184k views
2 votes
Susy has a square plot of grass in her backyard. Each side of the plot has a length of 14.5 feet. On one side, a semicircular fountain with a radius of 2.5 feet cuts into the plot of grass. She wants to put a brick border around the edge of the grass, so that it will also separate the grass from the fountain.What is the approximate length of the brick border?

1 Answer

2 votes

Given:-

Susy has a square plot of grass in her backyard. Each side of the plot has a length of 14.5 feet. On one side, a semicircular fountain with a radius of 2.5 feet cuts into the plot of grass. She wants to put a brick border around the edge of the grass, so that it will also separate the grass from the fountain.

To find:-

What is the approximate length of the brick border?

The length of squares four sides is,


4*14.5=58

All four sides of square are equall,


58-(2.5*2)=53

Diameter of a circle is twice its radius,


\pi r=\pi2.5=7.85

Formula of circumference is,


2\pi r

So the length of brick is,


53+7.85=60.85

So the approximate length is 60.85ft.

User Shantanu Sharma
by
7.2k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories