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wariber [46]
3 years ago
9

What is the value of X for this triangle?

Mathematics
2 answers:
Marina CMI [18]3 years ago
7 0

Answer = 50°

-A triangle adds up to 180°

-A straight line adds up to 180°

Because 105° is on the outer side of that line on the triangle,

We must substract 180° from 105° to get the angle on the inside of the triange (cause it’s a straight line)

which would be 75°

Now add up 75° and 55° = 130°

Since a triangle adds up to 180°,

180° - 130° = 50°

X = 50°

blagie [28]3 years ago
5 0

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