Pair Of angles intersect at the point at ‘o’. If one of the angle is x and one of the angle is y then the measure of angle (x+y) is the angle z.. Which is measure of angle ‘o” . Prove this

Give chapter 5 lines and angles own questions for board exams 

Find the following percentage value:

1) 15% of 250.

Find the angle which is equal to its supplement.

Find the breadth of the rectangle whose length is 70 cm and perimeter 200 cm.

Convert 1 gallon into liters.

a. 3.05 liters

b. 3.78 liters

c. 4.05 liters

d. 4.78 liters