3-4 Lesson 3-4 Example 1 Use the formula A = ℓ w to solve for ℓ, length. The area of the rectangle is 72 square yards. Its width is 9 yards. What is the.

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3-4 Lesson 3-4 Example 1 Use the formula A = ℓ w to solve for ℓ, length. The area of the rectangle is 72 square yards. Its width is 9 yards. What is the length of the rectangle? Example 1 1. Substitute the values. 72 = ℓ 9

3-4 Lesson 3-4 Example 1 Use the formula A = ℓ w to solve for ℓ, length. Example 1 The area of the rectangle is 72 square yards. Its width is 9 yards. What is the length of the rectangle? 2. Use the inverse operation. 72 9 = ℓ 9 9

3-4 Lesson 3-4 Example 1 Use the formula A = ℓ w to solve for ℓ, length. Example 1 The area of the rectangle is 72 square yards. Its width is 9 yards. What is the length of the rectangle? 3. What is the value of ℓ? 8 = ℓ

3-4 Lesson 3-4 Example 1 Use the formula A = ℓ w to solve for ℓ, length. Example 1 The area of the rectangle is 72 square yards. Its width is 9 yards. What is the length of the rectangle? 4. The length of the rectangle is 8 yards.

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