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HELP ME PLEASEEE

Desiree is laying stone pavers along the patio and walkway. The walkway is 4 feet wide. The patio measures 8 feet from top to bottom and 11 feet across. How much area does Desiree need to​ cover?

HELP ME PLEASEEE Desiree is laying stone pavers along the patio and walkway. The walkway-example-1

1 Answer

1 vote

Answer:

134 square feet

Explanation:

You want to know the area of the composite shape shown in the figure.

Area

The figure can be divided by two horizontal lines into two trapezoids and a parallelogram. (See the first attachment.) The area formulas for these are ...

A = 1/2(b1 +b2)h . . . . . trapezoid with bases b1, b2

A = bh . . . . . . . . . . . parallelogram with base b

Application

Each of the horizontal sections in the figure is 4 feet high.

The top trapezoid has an area of ...

A = 1/2(5 +11)(4) = 32 . . . . square feet

The middle parallelogram has an area of ...

A = (11)(4) = 44 . . . . square feet

The bottom trapezoid has an area of ...

A= 1/2(16 +13)(4) = 58 . . . . square feet

The total area is ...

(32 +44 +58) ft² = 134 ft²

Desiree needs to cover 134 square feet.

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Additional comment

The 5' diagonal measures are not used in the computation. They can help you see that all of the right triangles in the figure are 3-4-5 right triangles. (The hexagonal shape is not a regular hexagon.)

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HELP ME PLEASEEE Desiree is laying stone pavers along the patio and walkway. The walkway-example-1
HELP ME PLEASEEE Desiree is laying stone pavers along the patio and walkway. The walkway-example-2
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