Pythagoras Theorem

 $In\ a\ right\ angled\ \Delta$ , if the lengths of the sides containing the right angle are 20 cm and 21 cm, then the length of its hypotenuse is :

If the sides of a rectangular plot are 40 m and 9 m, then the length of its diagonal is :

If a man goes 15 m due north and then 8 m due east, then his distance from the starting point is :

AD is drawn  $\perp$  to base BC of an equilateral  $\Delta$   ABC. If BC = 10 cm, then the length of AD, correct to one place of decimal is 

 $In\ a\ right\ angled\ \Delta$ , if hypotenuse is 10 cm and the ratio of the other two sides is 3 : 4, then these sides are : 

A ladder 20 m long rests against a vertical wall. If the foot of the ladder is 12 m away from the base of the wall, the height of the point on the wall where the top of the ladder reaches is :

In a rhombus, if the lengths of the diagonals are 10 cm and 24 cm, the length of the side of the rhombus is :

Two poles of heights 6 m and 13 m stand vertically on a plane ground. If the distance between their feet is 24 m, the distance between their tops is :

If the diagonal of a square is 8 cm long, then its perimeter is :

The hypotenuse of a right-angled triangle is 5 cm less than twice the shortest side. If the third side is 5 cm more than the shortest side, then the shortest side of the triangle is :