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qwelly [4]
3 years ago
12

The plan of a terrace is shown at right. The scale is 2 inches : 6 feet. What are the length and width of the terrace? Find the

terrace’s area.

Mathematics
1 answer:
galina1969 [7]3 years ago
7 0

Answer:

Part 1) The length of the terrace is 15 feet

Part 2) The width of the terrace is 6 feet

Part 3) The area of the terrace is 90 square feet

Step-by-step explanation:

<u><em>The picture of the question in the attached figure </em></u>

we know that

The scale of the plan is \frac{2}{6} \frac{in}{ft}

step 1

Find the length of the terrace

we know that

The length of a terrace in the plan is equal to 5 inches

so

by proportion

Find the length of the terrace in the actual

\frac{2}{6} \frac{in}{ft}=\frac{5}{x} \frac{in}{ft}\\ \\x=6*5/2\\ \\x=15\ ft

step 2

Find the width of the terrace

we know that

The width of a terrace in the plan is equal to

so

by proportion

Find the width of the terrace in the actual

\frac{2}{6} \frac{in}{ft}=\frac{2}{x} \frac{in}{ft}\\ \\x=6*2/2\\ \\x=6\ ft

step 3

Find the area of a terrace

we know that

The area of a terrace is equal to

A=LW

we have

L=15\ ft\\W=6\ ft

substitute

A=15*6=90\ ft^{2}

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