Question

what is the streamlined shape? How is it useful

Answer 1

here is ur answer mate,

streamlined shape is a special type of shape like bird's body or fish body which is used to reduce the friction in water or air...

hope it helps...

Answer 2

streamlined body is a shape that lowers the friction drag between a fluid, like air and water, and an object moving through that fluid .

the body of fish and birds are streamlined which helps them to move easily in water and air.