Register
What is the area of a regular pentagon with a side length of 9 millimeters and an apothem length of 6.2 millimeters? A. 55.8 millimeters squared B. 279.0 millimeters squared C. 27.9 millimeters squared
149k views
1 vote
What is the area of a regular pentagon with a side length of 9 millimeters and an apothem length of 6.2 millimeters?

A. 55.8 millimeters squared
B. 279.0 millimeters squared
C. 27.9 millimeters squared
D. 139.5 millimeters squared

User Thirumalaa Srinivas
by
8.0k points

1 Answer

2 votes
A Pentagon can be broken up into 5 equal triangles. Area of the Pentagon is the sum of all the 5 triangles.

Area of the pentagon = 5 ( 1/2 x 6.2 x 9) = 139.5 mm²

Answer: 129.5 mm² (Answer D)
User Corvax
by
8.3k points
← Prev Question Next Question →

Related questions

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
Link Copied!