Question

Hey guys Pls help me with these questions​

Answer 1

Answer:

a)

in the quadrilateral, y + z + (180-110) + (180-x) = 360

(180-100) + (180-75) + 70 - x = 180

80 - 75 + 70 - x = 0

x = 75

b)

x + 110 = 180

x = 70

c)

its a regular pentagon (n = 5)

internal angle of regular n-gon= 180×(n-2)/n

x = 180 × 3/5 = 108

d)

location of angle x seems misplaced from thar figure

i guess its 90...