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3 years ago

Three angles on a straight line. The first and second angles each measures 25°. What does the third angle measure?

Mathematics

2 answers:

lara31 [8.8K]3 years ago

6 0

Answer:

130

Step-by-step explanation:

A straight like measures 180°

25+25=50

180-50=130

plz mark brainliest :)

Crazy boy [7]3 years ago

5 0

Answer:

$130^{\circ}$

Step-by-step explanation:

A straight line can denote half a circle, each side having $180^{\circ}$ . Therefore, the sum of these three angles should be $180^{\circ}$ . Since the first two angles both measure $25^{\circ}$ , we can set up the following equation and solve:

$25+25+m\angle 3=180,\\m\angle 3= \fbox{$130^{\circ}$}$ .

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