Exercise 2.5.4: Proof by contrapositive of algebraic statements. About Prove each statement by contrapositive (a) For every pair of real numbers and , if , then . Solution (b) For every pair of real numbers and , if , then or . (c) For every pair of positive real numbers and , if , then or .

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°

60°

step-by-step explanation:

the measure angle of c in an isosceles triangle abc is 60° because in isosceles triangle,the measures of all the angles is 60°.

answer: im sorry i dont get it

step-by-step explanation: