3 years ago

A. what is the height of the st. louis arch?

Mathematics

1 answer:

Mrrafil [7]3 years ago

3 0

The height is 630 feet.

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A circle has a diameter of 12 inches. What is its area in terms of π?

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Answer:

36π

Step-by-step explanation:

Since you have to use terms of pi you just leave out pi out of the formula

A = πr² so it would be

A = r² Radius is half of diameter so half of 12 = 6

A = 6²

A = 36

Than you add pi

36π

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4 years ago

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Step-by-step explanation:

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The base of pyramid A is a rectangle with a length of 10 meters and a width of 20 meters. The base of pyramid B is a square with

riadik2000 [5.3K]

The volume of rectangle pyramid can be calculated using formula:

$V_{pyramid}=\dfrac{1}{3}\cdot \text{length}\cdot \text{width}\cdot \text{height}.$

1. If the base of pyramid A is a rectangle with a length of 10 meters and a width of 20 meters, then

$V_{A}=\dfrac{1}{3}\cdot 10\cdot 20\cdot H_A=\dfrac{200}{3}H_A.$

2. If the base of pyramid B is a square with 10-meter sides, then

$V_{B}=\dfrac{1}{3}\cdot 10\cdot 10\cdot H_B=\dfrac{100}{3}H_B.$

3. If heights $H_A,\ H_B$ are the same, you can see that

$V_{A}=2V_{B}.$

Answer 1: twice (2 times)

If $H_B=2H_A,$ then

$V_{B}=\dfrac{100}{3}H_B=\dfrac{100}{3}\cdot 2H_A=\dfrac{200}{3}H_A=V_{A}.$

Answer 2: the same

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