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xenn [34]
3 years ago
11

Total surface area. pls explain ​

Mathematics
2 answers:
Lisa [10]3 years ago
8 0

Answer:just add everything

Step-by-step explanation:

Maslowich3 years ago
5 0

9514 1404 393

Answer:

  144 m²

Step-by-step explanation:

The total surface area is the sum of the areas of the four triangular faces.

Three of them have a base of 10 and a height of 6.7. The fourth has a base of 10 and a height of 8.7. Here, we'll show the sum in one expression, so we can do some simplification.

  A = ∑(1/2)bh = (1/2)(10)(6.7) +(1/2)(10)(6.7) +(1/2)(10)(6.7) +(1/2)(10)(8.7)

  = (1/2)(10)(3·6.7 +8.7) = 5(28.8) = 144 . . . . square meters

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Help please!!! Thxxxxxx
Alika [10]

Answer:

40 degrees

Step-by-step explanation:

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Angle CAO = 60 (180 - 120)

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8 0
3 years ago
Find the area of a regular octagon with
vodka [1.7K]

Answer:

Step-by-step explanation:

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5 0
2 years ago
I feel like I’m missing something simple. Please help explain?
wariber [46]

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6 0
3 years ago
Angle A and B are supplementary. Angle a has a measure of 80. What is the measure of angle B? The measure of angle B is
ololo11 [35]
Well when two angles are supplementary they equal 180.
So if angle A is 80 degrees then that would mean that angle B equals 100 degrees. 


Hope This Helped :) 



4 0
3 years ago
For what interval is the function f(x) = (20 + \sqrt{x}) / (\sqrt{20 + x}) continuous?
konstantin123 [22]
Try this solution:
1. according to the condition
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2. for more details see the attached graph.

Answer: [0;+oo)

5 0
3 years ago
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