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lbvjy [14]
3 years ago
14

1. What is the surface area of the pyramid below 6 , 5.2 ,8.2

Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
4 0
128.22? I’m not sure if it’s right because you did not specify the base length, width or height.
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Can you help me with this question?
Rufina [12.5K]

Answer:

  16.2

Step-by-step explanation:

The angle internal to the triangle at B is the supplement of the one shown, so is 65°. That is equal to the angle internal to the triangle at D. Since the vertical angles at C are congruent, the two triangles are similar by the AA theorem.

Corresponding sides of similar triangles are proportional, so we can write the proportion shown in the attachment:

  BC/FC = DC/AC

  BC = FC(DC/AC) = 21.6(7.2/9.6)

  BC = 16.2 . . . . matches the first choice

4 0
3 years ago
What Is 3,552,308,725 In Word Form
Liono4ka [1.6K]
3, 552, 308, 725 in word form is:

Three billion, five hundred fifty-two million, three hundred eight thousand, seven hundred twenty-five.

7 0
3 years ago
Read 2 more answers
Bella saw that 7 out of 11 people brought an umbrella to the beach. There 99 people there. How many of them did not have a beach
Alinara [238K]
Hello!

7 out of 11 people brought an umbrella to the beach

this is a fraction of 7/11

We multiply this by 99 to get how many people brought an umbrella out of 99

7/11 * 99 = 63

You subtract this from 99 to see how many did not have an umbrella

99 - 63 = 36

The answer is 36 people

Hope this helps!
7 0
3 years ago
What’s 10 - 3.587 equal
Pavel [41]
Instead of brainly you could just open your calculator.

10-3.585 = 6.415
7 0
3 years ago
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22 over 9 as a mixed number
aalyn [17]
That easy just divide 9 by 22 if need simplify it
8 0
3 years ago
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