On this, find the area of the shape shown below.

Area of the shape = 240 unit²

Step-by-step explanation:

Shape in the figure attached there are two parts. One is a triangle and other a rectangle.

By adding the area of these two shapes we can get the area of complete shape.

1). Area of the triangle =

Base of the triangle = 20 units

height of the triangle = 4 units

Therefore area of triangle = square units

2). Area of rectangle = Length × width

                                  = 20 × 10 = 200 unit²

Total area of the shape = area of triangle + area of rectangle

                                       = 40 + 200 = 240 unit²

So the answer is area of the shape = 240 unit²

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

16.9 times 2.85

step-by-step explanation: