A Boat goes 30 km upstream and 44 km downstream in 10 hours in 13 hours it can go 40 kilometre upstream and 55 km downstream determine the speed of the stream and DDA top of the boat in in still water
A triangle and a parallelogram have the same area. If the sides of the triangle are 26cm,28cm,30cm,and the parallelogram stands on the base 28cm,find the height of the parallelogram.