Question

can you explain 7th question with formula​

Answer 1

hey mate!

a) angle APQ + y = angle PRD (by alternate interior angles)

so, 70 + y = 100degrees

so, y = 30 degrees

now 70+ y + z = 180 degrees (by linear pair)

so, 70 + 30 + z = 180 degrees

so, z = 80 degrees

now, angle y + z = angle x (again by alternate interior angles)

so, 30 + 80 = angle x = 110 degrees

XOXOXOXOXOXOXOXOXOXOXOXOX

b) 80 + y + 40 = 180 ( angle sum property of triangle)

so, y = 60 degrees

now, angle x = 80 degrees (by alternate interior angles)

now, x + y + z = 180 (by linear pair)

so, 80 + 60 + z = 180

so, angle z = 40 degrees

hope this helps you

pls mark it as brainliest

thanks!