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FrozenT [24]
3 years ago
5

NEED HELP ASAP will give BRAINLIEST :)

Mathematics
1 answer:
allochka39001 [22]3 years ago
8 0
10a+4+14a-2=14a+31
Add the common variables
24a+4-2=14a+31
24a+2=14a+31
Subract 2 from each side
Subract 14a from each side
Then divide each side by 10
A=-2.9

A= -3.7
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Need help on this please help
kobusy [5.1K]

Answer:

The measure of ∠A is 127°.

Step-by-step explanation:

The interior angles of a triangle always add up to 180°. Since you can fix <em>three</em> triangles into a pentagon, the sum of its interior of angles is 540° You could also look at how many angles there are (5), multiply that number by 180°, then subtract 360° from the product.

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<em>Hope this helps,</em>

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