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2 years ago

What is the total surface area of the square pyramid below?

Mathematics

1 answer:

Stels [109]2 years ago

8 0

The surface area of the square pyramid is 132 m².

We have given the diagram,

We have to determine the area of the square pyramid.

<h3>How to the surface area of a square pyramid?</h3>

For a square pyramid whose base has sides that measure b, and height h, is:

S = b*b + 4*(b*h)/2

In this case, we have

b = 6m

h = 8m

Replacing that in the surface area equation,

we get:

S = (6m*6m) + 4*(6m*8m)/2 = 132 m²

So the correct option is the first one.

To learn more about surface areas visit:

brainly.com/question/6613758

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Find the value of y.

olga nikolaevna [1]

Try this option:
1. the sides of the biggest triangle are 16; x and √(16²-x²); the sides of the smallest triange are x;5 and y. The smallest triangle ~ the biggest triangle. Using the property of the similar triangles:
$\frac{x}{5} = \frac{16}{x}, \ then \ x= \sqrt{80}$
2. according to the Pyphagorean theorem (in the smallest triangle):
$y= \sqrt{ \sqrt{80^2} -5^2} = \sqrt{55}$

answer: y=√55.

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3 years ago

The angle of elevation of the top of a tree is 60°. If the point of observation is 4m from the foot of the tree. How far is the

inn [45]

Answer:

Step-by-step explanation:

x = hypotenuse since they want the point of observation to the top of the tree

cos 60 = 4/x

x = 4 / cos 60

x = 8m

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3 years ago

Your history test is out of 30 points. How many points would you need to get if you wanted a ‘B’ or higher? (Hint: A grade of 80

Sloan [31]

To get a B, you need at least 80%.

30 x 0.8 = 24

80% of 30 is 24, so you would need to get at least 24 points <3

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3 years ago

Read 2 more answers

-7 2/3 + (-5 1/2 ) + 8 3/4

Tanzania [10]

Answer:131/12

Step-by-step explanation:

-7 2/3 -5 1/2 +8 3/4 = 23/3 - 11/2 + 35/4 = 92/12 -66/12 +105/12 = 131/12

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3 years ago

60% of Herbert's movies are adventure movies. He has 18 adventure movies. How many movies does Herbert have in all?

Vera_Pavlovna [14]

Data:
x (Number of movies) = ?

$\frac{60}{100} *x = 18$
$0,6x = 18$
$x = \frac{18}{0,6}$
$\boxed{x = 30}$

Answer:
<span>Herbert have in all ?
30 movies</span>

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3 years ago