Transversal t cuts parallel lines a and b as shown in the diagram. Which equation is necessarily true? A. m∠1 = m∠2

B. m∠4 = m∠6

C. m∠1 + m∠5 = 90°

D. m∠3 + m∠5 = 180°

E. m∠7 = m∠8

D is true

Step-by-step explanation:

A, B, C, and E are supplementary pairs so they cant equel each other.

lol we need to see what the question is asking about

step-by-step explanation:

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.