A windscreen wiper of a vehicle clears out an angle at 108 degree.what is the area

depends on the length of the wiper blade - inner and out radius.

Then a = 1/2 r^2 θ

I am oñ that question too I can't seem to find things right 😞😞

To find the area cleared by the windscreen wiper of a vehicle, we need some additional information. Specifically, we need to know the length of the windscreen wiper blade or the radius of the circular area being cleared.

If we assume that the windscreen wiper clears a circular area, we can use the formula for the area of a sector of a circle to calculate the cleared area.

The formula for the area of a sector of a circle is:

Area = (θ/360) * π * r^2

where θ is the central angle in degrees and r is the radius of the circle.

Let's assume that the radius of the circular area being cleared is 10 cm. Then, the central angle is given as 108 degrees.

Area = (108/360) * π * (10)^2
= (3/10) * π * 100
= 30 * π

Hence, the area cleared by the windscreen wiper is 30π square units.

To find the area cleared by a windscreen wiper given the angle, we need to make a few assumptions. Let's assume that the cleared area is in the shape of a sector of a circle.

The formula to find the area of a sector is:

Area = (θ/360) x πr²

where θ is the central angle in degrees and r is the radius of the circle.

In this case, the central angle is given as 108 degrees. We also need to know the radius of the circle on the windscreen where the wiper clears the area. Let's assume the radius is 30 cm.

Substituting the values into the formula, we get:

Area = (108/360) x π(30)²

Simplifying further:

Area = (3/10) x π(900)

Area = (3/10) x 900π

Area = 270π or approximately 847.56 square cm

Therefore, the area cleared by the windscreen wiper is approximately 847.56 square cm.