Question

Complete the two-column proof.

Given:<2=<4, m<2= 110 degrees
Prove:m∠3 = 70º

<2=<4, m<2= 110 degrees Given
m∠2 = m∠4 Definition of congruent angles
m∠4 = 110º b. ________
∠3 and ∠4 are a linear pair Definition of a linear pair (shown in diagram)
∠3 and ∠4 are supplementary Linear Pair postulate
m∠3 + m∠4 = 180º
m∠3 = 70º d. ________

Answer 1

damn 6 years later, and still no response

damn 6 years later, and the curriculum still hasn't changed

Answer 2

A. substitution property of equality, b. supplementary angles, and c. subtraction property of equality

(this might differ for everyone. i got full credit for this answer, but i cannot say for everyone)

Answer 3

Question is still the same this year too

Answer 4

its D. triangle angle sum theorem