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weeeeeb [17]
3 years ago
9

if two angles of a triangle have measures of 42 degrees and 20 degrees what is the measure of the third

Mathematics
1 answer:
Mila [183]3 years ago
3 0
Every triangle has an angle measure of 180 degrees.

so 42+20+x (where x is the measure of the third angle)=180

Combine like terms.

62+x=180

Subtract 62 from both sides

x=118.
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