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postnew [5]
3 years ago
10

In ∆ABC, m<A = 72 and m<B = 83. What is the measure of <C?​

Mathematics
2 answers:
mart [117]3 years ago
7 0

Answer:

25

Step-by-step explanation:

<em>Theorem:</em>

<em>The sum of the measures of the interior angles of a triangle is 180 degrees.</em>

The theorem is can be written as the equation below.

m<A + m<B + m<C = 180

We know the measures of angles A and B, so we substitute the values for those measures, and we solve for the measure of angle C.

72 + 83 + m<C = 180

Add like terms on the left side.

155 + m<C = 180

Subtract 155 from both sides.

m<C = 25

Answer: m<C = 25

Anna007 [38]3 years ago
3 0

Answer:

25 degrees.

Step-by-step explanation:

The 3 angles in a triangle  add up to 180 degrees therefore:

m < C = 180 - 72 - 83

=  180 - 155

= 25 degrees.

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