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4 years ago

Please help with this im really confused and please explain abit with words. please and thanks!

Mathematics

1 answer:

Hatshy [7]4 years ago

5 0

Step-by-step explanation:

just add all the given angles and equate it with 540° and then find x

x/2 + x/2 + x - 25 + 100 + x - 15 = 540°

3x + 60 = 540°

3x = 540 - 60

x = 480/3

x = 160°

on checking, the given shape values of x-25 and x - 15 are both still obtuse angles thus the answer is correct.

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