153k views
3 votes
Find the area of this regular polygon round to nearest tenth

Find the area of this regular polygon round to nearest tenth-example-1
User Emma Ray
by
5.9k points

1 Answer

1 vote

Answer:


A=163.9in^2

Explanation:

Let's use the regular polygon area formula when given the radius.


A=((r^(2))(n)sin((360)/(n)))/(2)

r is radius

n is the number of sides

Let's plug in the proper values into this equation and simplify:


A=((7.74^(2))(7)sin((360)/(7)))/(2)


A=((59.9076)(7)(0.78183148))/(2)


A=(327.86353299)/(2)


A=163.93176649

User Julien Kieffer
by
5.7k points