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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.”

Respuesta :

bhuvna789456

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    

Ver imagen bhuvna789456

Answer:

third option

Step-by-step explanation:

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