Name the property under multiplication used in each of the following. (i)−4/5×1=1×−4/5=−4/5 (ii)−13/17×−2/7=−2/7×−13/17 (iii)−19/29×29/−19=1

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