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
6.1k 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
5.9k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

6.5m questions

8.7m answers

Other Questions

What is the least common denominator of the four fractions 20 7/10 20 3/4 18 9/10 20 18/25
What is 0.12 expressed as a fraction in simplest form
Solve using square root or factoring method plz help!!!!.....must click on pic to see the whole problem
What is the initial value and what does it represent? $4, the cost per item $4, the cost of the catalog $6, the cost per item $6, the cost of the catalog?
What is distributive property ?
Link Copied!