1.7 - Find Perimeter, Circumference, and Area
Perimeter: Length around a shape. Measured in u cm, in, ft, yd
Area: Square units inside a shape. Measured in u 2 cm 2, in 2, ft 2, yd 2 1u1u 1u21u2 1u1u 1u1u 1u21u2 1u1u 1u1u 1u21u2 1u1u 1u1u 1u21u2 1u1u 1u1u 1u21u2 1u1u 1u1u 1u21u2 1u1u
Square: s
Rectangle:
Triangle: b ac h b a c h
Circle: d Diameter = 2 radius
1. Find the perimeter and area of the shaded figure. Perimeter: _____________ Area: __________________ P = 4s P = 4(8) P = 32in A = s 2 A = 8 2 A = 64in 2
1. Find the perimeter and area of the shaded figure. Perimeter: _____________ Area: __________________
1. Find the perimeter and area of the shaded figure. Perimeter: _____________ Area: __________________
1. Find the perimeter and area of the shaded figure. Perimeter: _____________ Area: __________________
1. Find the perimeter and area of the shaded figure. Perimeter: _____________ Area: __________________
2. Find the perimeter and area of the shaded figure. Perimeter: _____________ Area: __________________
2. Find the perimeter and area of the shaded figure. Perimeter: _____________ Area: __________________
2. Find the perimeter and area of the shaded figure. Perimeter: _____________ Area: __________________ P = P = 72u A = bh – 2 r 2 A = (24)(12) – 2 (6) 2 A = 288 – 2 (36) A = (288 – 72 )u 2 P = 72u A = (288 – 72 )u 2
4. Use the information about the figure to find the indicated measure. Perimeter = 84ft Find the length.
Area = 432m 2 Find the width. 4. Use the information about the figure to find the indicated measure.
Area = 189cm 2 Find the height. 4. Use the information about the figure to find the indicated measure.
HW Problem # odd, 27-29, 34-37, 41 **Bring ALL supplies tomorrow for review A = s = s 2