Two sides of a triangle have lengths of 7 ft and 15 ft. Which inequality represents the possible length for the third side, x? A. 8 < x < 22
B. 8 < x < 15
C. 7 < x < 15
D. 8 < x < 7

mx+89b(-98)nb

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°