Question

give the answer urgent​

Answer 1

I don't know a) part so I am giving the answer of

b).

B)

We can find y by,

80° + y = 180° (Linear pair of angles)

y = 180° - 80°

y = 100°

Also, we can find x by the same way,

120° + x = 180° (Linear pair of angles)

x = 180° - 120°

x = 60°

And we can find z also through the same property,

60° + z = 180°

z = 180° - 60°

z = 120°

Now,

According to exterior angle property, the exterior angle is the sum of the two interior angles opposite to it.

That is why,

w = 80° + 60°

w = 140 °

So these are the required angles,

x = 60° , y = 100° , z = 120° , w = 140°

Hope it helps