HW #8 Find the measures of the sides of triangle ABC and classify each triangle by its sides.

A(5, 4) B(3, -1) C(7, -1)

A(-4, 1) B(5, 6) C(-3, -7)

A(-7, 9) B(-7, -1) C(4, -1)

A(-3, -1) B(2, 1) C(2, -3)

u rich

step-by-step explanation:

deez nu tz

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°

126 maybe. sorry