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What is the third angle of a triangle if the other two are (3x-20)° and (4x+10)°​
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15 votes
What is the third angle of a triangle if the other two are (3x-20)° and (4x+10)°​

User Ammo Goettsch
by
3.2k points

1 Answer

14 votes

Answer:

The other angle is 190-7x.

Explanation:

Angles in a triangle add up to 180 degrees.

Let A be the third angle.

A + (3x-20) + (4x+10) = 180

A = 180 - (3x - 20) - (4x + 10) = 190 - 7x

User AmilaMGunawardana
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3.2k points
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