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 area

Respuesta :

12ft squared i got because 6 times 2

Answer:

Part 1) The length of the terrace is [tex]15\ ft[/tex]

Part 2) The width of the terrace is [tex]6\ ft[/tex]

Part 3) The area of the terrace is [tex]90\ ft^{2}[/tex]

Step-by-step explanation:

we know that

The scale of the plan is [tex]\frac{2}{6} \frac{in}{ft}[/tex]

see the attached figure to better understand the problem

Step 1

Find the length of the terrace

we know that

The length of a terrace in the plan is equal to [tex]5\ in[/tex]

so

by proportion

Find the length of the terrace in the actual

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

Step 2

Find the width of the terrace

we know that

The width of a terrace in the plan is equal to [tex]2\ in[/tex]

so

by proportion

Find the width of the terrace in the actual

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

Step 3

Find the area of a terrace

we know that

The area of a terrace is equal to

[tex]A=LW[/tex]

we have

[tex]L=15\ ft[/tex]

[tex]W=6\ ft[/tex]

substitute

[tex]A=15*6=90\ ft^{2}[/tex]


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