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zvonat [6]
3 years ago
10

What is the measurement

Mathematics
1 answer:
Blizzard [7]3 years ago
3 0

Answer:

X=135 degrees

Step-by-step explanation:

the total interior angle of a triangle is 180.

To work this out you would first add the interior angles of B which is 69 and the interior angle of C which is 66, which gives you 135.

The next step is to minus 135 from 180, which gives you 45. This is because the total interior angle of a triangle is 180.

Then to work out the angle of x you would minus 45 from `180, which gives you 135. This is because the total angle in a straight line is 180 degrees.

1) Add the angles of 69 and 66.

69+66=135\\

2) Minus 135 from 180.

180-135=45

3) Minus 180 from 45.

180-45=135 degrees

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