Chapter 12, Lesson 3


12-3.A find perimeter and area of polygons
Find the perimeter and area of each figure. As applicable, round answers to the nearest whole unit.
a. A right triangle whose legs measure 8 in. and 15 in.
b. An equilateral triangle of side 10 cm.

12-3.B find circumference and area of circles
Find the exact value of the circumference and area of each circle.