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Sandy has built a triangular pool and wants to
add a rectangular deck around it as shown in the
figure. How many square feet of wood does Sandy
need for the deck?

Sandy Has Built A Triangular Pool And Wants To Add A Rectangular Deck Around It As Shown In The Figure How Many Square Feet Of Wood Does Sandy Need For The Deck class=

Sagot :

Step one: Find area of triangular pool, 1/2BH=1/2(20x8)=80ft^2
Step two: Find the area of the rectangle, BH=30x15=450ft^2
Step 3: Subtract the area of the triangular pool from the area of the rectangular deck, 450-80=370ft^2
Sandy will need 370 square feet of wood to build her rectangular deck around her triangular pool.
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