The base of a right angled triangle with area 300 cm2 and height 30 cm is
10 cm
15 cm
20 cm
30 cm
The area of a parallelogram whose base is 4 cm and the height is 5 cm is
The slant height of a cone with radius 15 cm and height 20 cm is
The area of a right-angled triangle is 3/5 of the area of a rectangle. The base of the triangle is 70% of the breadth of the rectangle. If the perimeter of the rectangle is 150 cm, the height of the triangle is