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4 years ago

Why do you need the Pythagorean theorem to find the surface area of a pyramid

Mathematics

1 answer:

zysi [14]4 years ago

5 0

Because it makes easier and faster to find.

we can even find by measuring each side and calculating area of each face.

You might be interested in

The perimeter of the triangle is 41 inches. The perimeter of the rectangle is 66 inches.

Korolek [52]

Answer:

Part A) The system of equations is equal to

$41=4x+7y$

$33=(3x+7y)$

Part B)

The length is $24\ in$

The width is $9\ in$

Step-by-step explanation:

Part A)

we know that

The perimeter of the triangle is equal to the sum of the length of its three sides

In this problem

$41=x+3x+7y$

$41=4x+7y$ -----> equation A

The perimeter of rectangle is equal to

$P=2(L+W)$

In this problem

$66=2(3x+7y)$

$33=(3x+7y)$ ------> equation B

Part B)

Using a graphing tool

Solve the system of equations

We know that

The intersection point both graphs is the solution of the system of equations

$41=4x+7y$

$33=(3x+7y)$

The intersection point is $(8,9/7)$

see the attached figure

$x=8\ in$

$y=(9/7)\ in$

step 3

Find the length and width of the rectangle

The length is 3x

$3*8=24\ in$

The width is 7y

$7*(9/7)=9\ in$

7 0

3 years ago

Read 2 more answers

What is the logarithmic form of 7^2 =49

Otrada [13]

Answer:

log7 49=2

Step-by-step explanation:

log base 7 49=2

4 0

3 years ago

Which number is both a factor of 80 and a multiple of 4? Select three that apply.

Ludmilka [50]

A... 40
D... 8
and
F... 16

4 0

3 years ago

35 miles per hour = f / minutes

nirvana33 [79]

Answer:

That would be 2100 minutes. 35 miles in 2100 minutes. I don't really know if that is what you were asking for but if it helps you, that is what really matters.

5 0

4 years ago

Find the diameter of a circle that has an arc measure of 14pi and a central angle of 80°

Vladimir [108]

Answer:63

Step-by-step explanation:

Length of arc =14π

Φ=80°

Radius =r

Length of arc =Φ/360 x 2 x π x r

14π=80/360 x 2 x π x r

14π=(80x2xπxr)/360

14π=160πr/360

Cross multiply

14π x 360=160πr

5040π=160πr

Divide both sides by 160π

5040π/160π=160πr/160π

31.5=r

Diameter =2 x r

Diameter =2 x 31.5

Diameter =63

7 0

3 years ago