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Romashka [77]
2 years ago
11

Please help me with this

Mathematics
1 answer:
PSYCHO15rus [73]2 years ago
6 0

Answer:

Step-by-step explanation:

Both angles added together = 180 degrees. They both have a straight line as their base.

So let <ABC = x

Then <CBD = 3x      Add the two angles

x + 3x = 180              Combine

4x = 180                    Divide by 4

4x/4 = 180/4

x = 45

So 3x = 3*45 = 135

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8 0
3 years ago
Can someone help me with this please?
Daniel [21]

Answer:

Classify by angles: <u>Equiangular</u>

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Step-by-step explanation:

An equiangular triangle has angles that all measure 60 degrees. An equilateral triangle is a triangle that has sides will all of the same lengths. This triangle meets both of these requirements.

Hope it helps!

5 0
2 years ago
89 m<br> 80 m<br> What is the length of the missing leg
sergiy2304 [10]

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Step-by-step explanation:

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This question would be a lot better if you had actually included the exercises. When a question talks about other questions that you already did, you need to include those too. Otherwise we don't know what the question is talking about. Fortunately I was able to figure it out without seeing the exercises, but just for future reference, you should include that extra information.

When two addends(things you add together) are negative, adding them is a lot like adding positive numbers; you just have a negative sign on the sum. For example,
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7 0
3 years ago
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kupik [55]

Answer:

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Step-by-step explanation:

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FOIL

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last: 10*10 =100

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x^2+10x+10x+100

x^2 +20x+100

4 0
3 years ago
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