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Area: Parallelograms. PRE-ALGEBRA LESSON 10-1. It takes 126 ft of fence to enclose a field that is twice as long as it is wide. What is the area of the field?. 882 ft 2. 10-1. Area: Parallelograms. PRE-ALGEBRA LESSON 10-1. (For help, go to Lesson 3-4.).

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Area: ParallelogramsPRE-ALGEBRA LESSON 10-1It takes 126 ft of fence to enclose a field that is twice as long as it iswide. What is the area of the field?882 ft210-1Area: ParallelogramsPRE-ALGEBRA LESSON 10-1(For help, go to Lesson 3-4.)Use A = w and find the third value.1.A = 54 in.2, w = 6 in. 2. = 35 m, w = 7 m3.A = 25 cm2, = 2.5 cm 4. = 7.2 ft, w = 7.2 ftCheck Skills You’ll Need10-1Area: ParallelogramsPRE-ALGEBRA LESSON 10-1Solutions 1.A = w2.A = w 54 = 6 A = 35 • 7 = 9 in. A = 245 m2 3.A = w4.A = w 25 = 2.5wA = 7.2 • 7.2w = 10 cm A = 51.84 ft210-1Area: ParallelogramsPRE-ALGEBRA LESSON 10-1 Find the area of the rectangle.Step 1Change the units so that they are the same. 150 cm = 1.5 m Change 150 centimeters to meters.Step 2 Find the area.A = bhUse the formula for area of a rectangle.= (4)(1.5) Replace b and h with the dimensions 4 and 1.5.= 6 Simplify.The area of the rectangle is 6 m2.Quick Check10-1A = bharea formulaA = bh= (8)(2) Substitute.= (2.5)(6)= 16 Simplify.= 15Area: ParallelogramsPRE-ALGEBRA LESSON 10-1 Find the area of each parallelogram.a.b.The area is 16 m2.The area is 15 in.2.Quick Check10-1Area: ParallelogramsPRE-ALGEBRA LESSON 10-1Find each area.1. rectangle ABFE2. parallelogram ACFD3. a rectangle with a base of 50 cm and a height of 5 cm40 cm248 cm2250 cm210-1

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