Question

Answer fast pls math sums very urgent​

Answer 1

Step-by-step explanation:

3)

2x+64°=180°

=>x=(180°-64°)/2

=>x=116°/2=58°

5)

5y°+3y°+2y°=180°

=>y°=180°/10

=>y°=18°

6)

Let the angles 5x and 7x

Therefore...

5x+7x=180°

12x=180°

x=180°/12

x=15°

So the angles are (15*5)°=75° and (15*7)°=105°

4)

Now the.

x+y+w+z=360°

(x+y) +(x+y) =360° [as x+y=z+w]

x+y=360°/2

x+y=180°

Therefore OA and OB are opposite to each other and on the same Line..... So AB is a straight line

Therefore OA and OB are opposite to each other and on the same Line..... So AB is a straight line(proved)