Asked by Precious
A regular pentagon is such that its vertices lies on the circumference of a circle of radius 4.5cm.Find the length of a side of the pentagon to the nearest mm
Answers
Answered by
oobleck
The pentagon consists of 5 isosceles triangles, with vertex angle 360/5 = 72°, and two sides of length 4.5 cm. So the base of the triangle (the side of the pentagon) is
s = 2*4.5sin36° cm
s = 2*4.5sin36° cm
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.