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klasskru [66]
3 years ago
13

An isosceles triangle has base angles measuring 25 degrees each. What is the measure of the vertex angle?

Mathematics
1 answer:
Yuri [45]3 years ago
7 0
A triangle's sum must add to 180 degrees. If two of the angles, summed, equal 50 degrees, then the vertex angle must equal 130 degrees. So, the vertex angle equals 130 degrees.
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20 = 7x + 2 - 4x <br> What does x equal
saveliy_v [14]

Answer:

x = 6

Step-by-step explanation:

20 = 7x + 2 - 4x

7x + 2 - 4x  = 20    (switch the sides)

7x - 4x + 2 = 20     (group the like terms together)

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------------------

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-------------------

x = 6

5 0
3 years ago
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4 0
4 years ago
I need help thanks.
melomori [17]
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since AB parallel to CD
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