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3 years ago

What is the area of the medal platform?

Mathematics

1 answer:

Pani-rosa [81]3 years ago

3 0

The total area is 78 sq. ft.

Since the medal platform has different measurements, we need to individually compute the area of each polygon.

The top polygon is a square. Its sides measure 3 ft.

A₁ = a²
A₁ = 3 ft²
A₁ = 9 ft²

The middle polygon is a rectangle.

Its total width can be derived by adding the widths given and the width of the square above.

w = 3 ft + 3 ft + 3 ft
w = 9 ft

A₂ = width * height
A₂ = 9 ft * 2 ft
A₂ = 18 ft²

The bottom polygon is also a rectangle.

w = 4 ft + 9 ft + 4 ft
w = 17 ft

A₃ = width * height
A₃ = 17 ft * 3 ft
A₃ = 51 ft²

Total Area = A₁ + A₂ + A₃
T.A. = 9 ft² + 18 ft² + 51 ft²
T.A. = 78 ft²

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3 years ago

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2 years ago

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2 years ago

A cylinder has a height of 12 inches and a radius of 1.5 inches. What is its voulme? Round your answer to the nearest tenth. Use

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2 years ago

Read 2 more answers

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Answer:

The second option will cost her less than the first one.

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$cost_1(x) = 0.5*x$

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Since she intends to drive it for 10,000 miles per year for 6 years, then the total mileage she intends to drive her car is 60,000 miles. Applying this to the formula of each car and we have:

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$cost_2(60000) = 5000 + 60000*0.1 = 11000$

The second option will cost her less than the first one.

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3 years ago