A square lawn has an area of 1152 square feet. A sprinkler placed at the center of the lawn sprays a water in a circular pattern that just covers the lawn. What is the radius of the circle?

The radius of the circle is 16.97 feet

Step-by-step explanation:

First, we will the determine the length of one the sides of the square lawn.

From the question,

The square lawn has an area of 1152 square feet,

Now, we can determine the length of a side of the square lawn from the formula,

( Formula for Area of a square)

Where is the area of the square lawn

and is the length of a side of the square lawn

From the question, = 1152 square fee

Then,

feet or feet

This is the length of one of the sides of the square lawn.

From the description in the question, the sprinkler sprays water in a circular pattern that just covers the lawn,

If the circular pattern formed just covers the lawn,

then, the diameter of the circle equals the length of one of the sides of the square lawn, that is,

Where is the diameter of the circle

Hence, feet

This is the diameter of the circle.

Now, for the radius of the circle,

From the relation between radius and diameter,

Then,

feet or feet

Hence, the radius of the circle is 16.97 feet

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get