Mamatha is walking towards North. After walking 4 kms, she turns right and then walks for 3 kms. Now how far and in which direction is she from the starting point.
Two poles of the height 15 m and 20 m stand vertically upright on a plane ground. If the distance between their feet is 12 m, find the distance between their tops.
If the lengths of the two parallel sides of a trapezium are 5 cm and 7 cm and the distance between these parallel sides is 4 cm. Find its area (in cm2).