Question

What is the asnwer fer the 4th question

Answer 1

Answer:

Here's your answer

Since x+y= w+z

The following figure is makes reflex angles...

Thus the sum of angles is 360

$x + y + w + z = 360$

As x+y= w+z

$w + z + w + z = 360 \\ \\ 2(w + z) = 360 \\ \\ w + z = \frac{360}{2} \\ \\ w + z = 180$

HENCE SINCE THE SUM IS 180 OF AOB

THUS AOB IS A STRAIGHT LINE...

Hope it helps ✌...

Answer 2

Answer

Sum of all angles = 360°

.°. => x + y + w + z = 360

Given that:

x + y = w + z

=> 2 (x + y) = 360

=> x + y = 180

AOB is therefore a line as it is drawn at 180° angle