U10F4

Last updated over 4 years ago
3 questions
Find the Area of a Regular Pentagon with a side of 10 cms? Answer each part.
1

What is the central angle in a regular pentagon. Remember the Central Angle is 360/n where n is the sides of a pentagon.

1

Find the Apothem a (perpendicular to the base) for the Central Triangle shown below: Remember SOH CAH TOA

1

Given that the Apothem a = 6.9 cm and the Area A = 1/2 * a * P where P is the Perimeter, select A?