Warm Up: Find the circumference of the circle. Round to nearest hundredth 1. r = 3.4 m 2. d = 9 cm Find the area of the figures. 3. Circle with diameter = 6 cm 4. Triangle with base = 4 in and height = 5 in 21.35 m 28.26 cm 28.26 cm2 10 in2
Lesson 4.3: Area I can: Find the area of a circle, triangle, square, and quadrilaterals using their formulas. Vocabulary: Length Width
Area of a Square
Find the Area You are given the side length of 4. 4
Find the Area 6 2
Length A dimension of a figure, usually the longer one, that is measured from end to end. Length
Width A dimension of a figure, usually the shorter one, that is measured from side to side. Width
Area of a Rectangle Width Length
Find the Area 7 12
Find the Area 15 2.4 3 8.3
Area of a Parallelogram height base
Find the Area 5 8
Find the Area 5 9 15 6 4 1 2 12
Area of a Rhombus height base
Find the Area 5.2 6
Find the Area 3.1 ft 7.4 m 4 ft 8 m 13.7 km 15 km
Area of a Trapezoid b1 h b2
Find the Area 3 3 4
Find the Area 2 4 1 4 5 3