MartinRM MartinRM

02-03-2017
Mathematics

Answered

The measures of the three angles of a triangle are given by 1. 3x +1 2. 2x -3, and 9x. What is the measure of the smallest angle?

A13 degrees
B23 degrees
C29 degrees
D40 degrees

Verified Answer :

Shadowlearner21 Shadowlearner21

02-03-2017

Since the total measure of all the angles of a triangle is always 180, solve for x with the equation: 3x+1+2x-3+9x=180. x=13. Now plug in x and look for the smallest one, which will be B. 23 degrees.

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