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Big Ideas Math: Modeling Real Life, Grade 6
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Big Ideas Math: Modeling Real Life, Grade 6 View details
1. Multiplying Fractions
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Exercise 68 Page 52

Use the formula for the surface area of a cube.

486cm^2

Practice makes perfect
We want to find the surface area of a cube with edge lengths of 9 centimeters. To do so, we can use the formula for the surface area of a cube. S=6s^2 The term s represent the side length of the cube. In our case, the side length is 9 centimeters. Then, we will substitute s= 9 into the above formula to calculate the surface area.
S=6s^2
Substitute

s= 9

S=6( 9)^2
CalcPow

Calculate power

S=6(81)
Multiply

Multiply

S=486
The surface area of the cube is 486cm^2.<premium partialsolution=1> </premium>
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arrow_right Self-Assessment for Problem Solving p.49
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