Several students made comments about this image. A triangle has angles B, C, D. The exterior angle to angle B is A. Which comment is true? “If I know the measures of A and B, I can subtract those measures from 180 to find the measures of the other two angles.” “If I know the measure of C, I can find the measure of angle A because they are the same.” “If I know the measures of angles C and B, I can find the measures of A and D.” “If I know the measure of angle A, I can find the measure of angle D by subtracting from 180.”

A Comment "If i know the measures of angles C and B, I can find the measures of A and D" is TRUE

Explanation :

If we know angles C and B we can find angles A and D as,

As from figure we know

                     A+B = 180°

∴                     A = 180° - B                           ... we know B so we get A

Also,

                   B+C+D = 180°                          ... as BCD is a triangle

∴                           D = 180° - (B+C)              ... we know B and C so we get D    

all the angles opposite to the angle 150 would be 150 and all the angles that are next to 150 are 30 because they equal 180 it you add it up.

step-by-step explanation: