3 years ago

SOMEONE PLZ GELP WITH NUMBER ONE.

Mathematics

1 answer:

vitfil [10]3 years ago

7 0

Answer:

900

Step-by-step explanation:

Each group of 3 starred angles plus the 4th angle which is an interior angle of the triangle has a total measure of 360 degrees. The sum of the measures of the three angles of the triangle is 180 degrees.

total measure of the starred angles = 4 * 360 - 180

total measure = 900 degrees

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