Question

i) In the adjoining figure, find x + y + z + w.

Answer 1

Answer:

180=x+130

x=180-130

x=50

180=y+80

y=180-80

y=100

180=z+70

z=180-70

z=110

360=70+80+130+a

360=280+a

a=360-280

a=80

180=a+w

180=80+w

w=180-80

w=100

=w+x+y+z

=100+50+100+110

=360