Posted by **Sarah Fuller** on Wednesday, March 3, 2010 at 2:02am.

A rear windshield wiper on a car has a total arm length of 10 inches and rotates back and forth through an angle of 95 degrees. The actual wiper blade is 7 inches long. Find the area of thr windshield that is being cleaned.

- trig -
**Big Rich**, Wednesday, March 3, 2010 at 2:37am
area of a circle =pi(r)^2

since its 95 degrees 95/180=.5278

r=7 inches

therefore the area is 81.25

- trig -
**Teagan**, Monday, February 13, 2012 at 5:08pm
Yea, but it isn't the entire circle so a circle area formula won't work. The equation for this area will be A= (1/2)r*Given Angle...

## Answer This Question

## Related Questions

- trig - A rear windshield wiper on a car has a total arm length of 10 inches and ...
- pprecalc - a windshield wiper on a a plymouth acclaim is 20 in. long and has a ...
- trig - An automobile windshield washer 10inches long rotates an angle of ...
- physics - The blade of a windshield wiper moves through an angle of 90.0° in 0....
- PHYSICS - The blade of a windshield wiper moves through an angle of 90.0° in 0....
- physics - The blade of a windshield wiper moves through an angle of 90.0° in 0....
- PHYSICS - How do I solve this? The blade of a windshield wiper moves through an ...
- Math - Percents - Polly mixes 2 gallons of windshield wiper fluid with 8 gallons...
- Geometry - You have purchased a scale model of a car. The scale factor is 1:24...
- math - James has a model heicopter. the model is 8 inches long and 7 inches wide...

More Related Questions