Check which of the lengths below can be sides of a triangle 4 centimetres, 6 centimetres, 7 centimetres

Check which of the lengths below can be sides of a triangle. 8 centimetres, 6 centimetres, 13 centimetres.

Check which of the lengths below can be sides of a triangle.2 centimetres, 5 centimetres, 8 centimetres

The inner length, breadth an height of a tank are 80 centimetres, 60 centimetres and 15 centimetres and it contains water 15 centimetre high. How much more water is needed to fill it?

If circles are drawn with each side of a triangle of sides 5 centimetres, 12 centimetres and 13 centimetres, as diametres,then with respect to each circle, where would be the third vertex?

The length, breadth and height of a brick are 21 centimetres, 15 centimetres and 7 centimetres. What is its volume?

Calculate the area and perimeter of a triangle of sides 30 centimetre, 28 centimetre and 30 centimetre. Also calculate the radius of the incircle.

What is the capacity of a box whose inner length, breadth and height are 50 centimetres, 25 centimetres and 20 centimetres?

The difference of the length of perpendicular sides of a right triangle is 10 centimetres. Its area is.72 square centimetres. Find the length of the perpendicular sides.