Math
posted by Kelsey .
Hi! Can you help me with this problem please? thank youu :D
The problem is:
The figure consists of a square with 4 half circles surrounding it. If the perimeter of the figure is 87 yards, what is the radius of each half circle? What is the area of the square? Round to the nearest tenth if necessary.

The perimeter of the figure is 4 half circles, or 2 complete circles.
A full circle has a perimeter of 2πr.
So we have
4πr=87 yds
Solve for r and hence the area of the square.
Respond to this Question
Similar Questions

Geometry
How do I figure out the area and perimeter of a square if all I know is the cross (top left corner to bottom right corner) measurement? 
Algebra 2
Make a table with a process column to represent each pattern. Write an expression for the number of circles in the Nth figure. The first figure is 5 circles long and 2 circles wide, the second 5 circles long and 3 circles wide. How … 
math
a figure skater must trace a figure eight on the ice that consists of two perfect circles, each with radius 11 feet. How far does the skater go one time around the figure eight? 
Math
Hey, I'm confused on this one problem and can you help me please? 
PLEASE HELP TANGENTS AND CIRCLES PROBLEM GEOMETRY
PLEASE HELP I REALLY NEED HELP. Each of the three circles in the figure below is externally tangent to the other two, and each side of the triangle is tangent to two of the circles. If each circle has radius three, then find the perimeter … 
Calculus
The figure at the right consists of a rectangle topped by an isosceles right triangle. The area of the figure is 200 sq. feet. The minimum perimeter of the figure is ___ft. 
5TH GRADE MATH
Need help trying to tell my daughter what or how to draw this........ DRAW a figure composed of three different rectangles that has a perimeter of 140 yards. Use measurements that are in yards and feet to label the sides of your figure...... 
Math
write an equation that relates the number of trapezoids in the figure (n), to the perimeter of the figure (P) the equation for the perimeter is P = 14n + 5 the equation for the perimeter is P = 5n + 14 the equation for the perimeter … 
math
two figures are shown. figure a is a square and figure b is a rectangle. the perimeter of figure a is equal to perimeter of figure __3x2_____     3x2  3x2 ___________ 3x2 ____________________       x2 ___________________ … 
math
The figures in (a) and (b) below are made up of semicircles and quarter circles; the figure in (c) shows a quarter of a circle in a square. Find the area and the perimeter of each figure in terms of π.