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3 years ago

5

What is the answer to 39 And 41

1 answer:

ivolga24 [154]3 years ago

8 0

I got these as the answer and I showed my work

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Use a net to find the surface Area of the square pyramid The height of the pyramid is 9 yes and the base sides are all 2.5 yrds

Cerrena [4.2K]

Answer:

$Area = 51.68yd^2$

Step-by-step explanation:

Given

$h = 9yd$ -- height

$a = 2.5yd$ --- base sides

Required

Determine the surface area

The net is not given. So, I will solve directly.

The surface area is calculated as:

$Area = a^2 + 2a\sqrt{\frac{a^2}{4} + h^2}$

So, we have:

$Area = 2.5^2 + 2*2.5\sqrt{\frac{2.5^2}{4} + 9^2}$

$Area = 6.25 + 5\sqrt{\frac{6.25}{4} + 81}$

$Area = 6.25 + 5\sqrt{1.5625 + 81}$

$Area = 6.25 + 5\sqrt{82.5625}$

$Area = 6.25 + 5* 9.086$

$Area = 51.68yd^2$

6 0

2 years ago

Can someone help me with (d)

zysi [14]

Answer:

1

Step-by-step explanation:

1 to the power of anything is still one

1 * 1 * 1 * 1 = 1

8 0

2 years ago

Which might be a better way to evaluate 1150 divided by 46: drawing base-ten diagrams or using the partial quotients method ? Ex

hammer [34]

Answer:

idk sounds like a good question

Step-by-step explanation:

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2 years ago

The lunchroom tables were clean except for some plates and napkins.

Naddika [18.5K]

The answer for this is (d)

8 0

2 years ago

Read 2 more answers

What's the answer to the question?

Doss [256]

Answer:

asa

Step-by-step explanation:

right angle

same base side

same length to other angle

6 0

2 years ago