Question

Find the unknown sizes of the angle​

please answer fast

Answer 1

The opposite angles formed on an intersecting line are equal.

Here,

angle y + 10 = angle 2y - 80

Now,

y + 10 = 2y - 80

10 + 80 = 2y - y

90 = y

Therefore,

The angle y + 10 measures 100°.

Also, angle 2y - 80 measures 100°.

The other two angles measure 80° each.