Question

calculate the value of x if AB parallel to CD

Answer 1

$since \: ab \: parallel \: to \: dc \\ angle \: a = angle \: d \: \: \: \: \: \: (alternate \: opposite \: angle) \\ in \: triangle \: \\ 45 + 60 + x = 180 \\ x + 105 = 180 \\ x = 180 - 105 \\ = 75$
Heyy friend your answer is here

Answer 2

given that AB || CD
angle A =60° Angle C=45°
to find the value of x
solutions
AB||CD
so that angle D will be equal to angle A
that is angle d will also be equal to 60°
let suppose the centre point as M
angle MDC
by using formula
angle M +angle D +angle C=180.
angle m is equal to x
angle d is equal to 60°
angle c is equal to 45°
by filling the values
x+60°+45°=180
x+105°=180
x=180-105
x=75°




hope this helps you ☺