Find thc mcasures of the three angles of a triangle if the sum of the measures of the first
angle and twice the measure of the second angle equals the measure of the third angle, and if
four times the measure of the second angle is 15 degrees more than the measure of the third
angle

all but the second one

step-by-step explanation:

cuz that one goes over 180

mark brainliest

u rich

step-by-step explanation:

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°