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2 years ago

What is the surface area of the pyramid

1 answer:

8 0

Answer:

The surface area is 31.85 in.

Step-by-step explanation:

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Ilya [14]

Answer:

I think y and z = 45

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2 years ago

slega [8]

Answer: The volume(v) is 438.77.

Explanation: The formula for a right circular cone is in the image.

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2 years ago

tamaranim1 [39]

U have a 90% chance of picking an orange marble, 10% of picking a different color

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2 years ago

ycow [4]

The length of the longer base is 41 ft.

<u><em>Explanation</em></u>

Lets assume, length of one base is $x$ ft.

As, another base is 19 less than five times the length of this base, so the length of another base $= (5x- 19) ft.$

The trapezoid has a height of 18 ft and area of 477 ft²

Formula for Area of trapezoid, $A=\frac{1}{2} (a+b)*h$ , where $a, b$ = Two bases of trapezoid and $h$ = height of the trapezoid.

Given in the question: $A= 477$ and $h= 18$

We have also two bases as: $a= x$ and $b= 5x-19$

So, according to the above formula...

$A= \frac{1}{2}(a+b)h\\\\ 477=\frac{1}{2}(x+5x-19)*18\\\\ 477=9(6x-19)\\\\477= 54x-171\\\\477+171=54x\\\\648=54x\\\\x=\frac{648}{54} = 12$

So, length of one base is $12 ft$ and another base $=(5*12-19)ft =(60-19)ft = 41 ft$

That means, the length of the longer base is 41 ft.

8 0

3 years ago

Nimfa-mama [501]

A=iii
B=iv
C=i
D=ii

That's it. I think you can figure out why this is the case.

5 0

3 years ago