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28 August, 03:43

Rocky builds a dog house for a friend of his. Rocky is thinking about painting the dog house half blue and half gold.

The rectangular prism shaped dog house is 7 inches wide, 15 inches long, and 20 inches high.

Part One: Find the surface area of the doghouse.

Part Two: How much blue and gold paint does he need?

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  1. 28 August, 04:01
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    Surface Area: 1090 inch²

    Blue Paint needed: 545 inch²

    Gold Paint needed: 545 inch²

    Step-by-step explanation:

    Is there a door or something? I'm assuming not because you didn't include it in your question.

    Surface Area:

    (7*15*2) + (15*20*2) + (20*7*2) =

    210+600+280=

    1090 inch²

    If he paints half the doghouse blue and the other half gold then simply divide the surface area by 2:

    1090:2=545

    He needs 545 inches² of blue paint

    He needs 545 inches² of gold paint.
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