A windshield wiper is 18 inches long and its blade is 12 inches long. It sweeps through an angle of 130 degrees. What is the total area wiped by the windshield wiper?

Step-by-step explanation:

From the question we are told that:

Length of wiper

Length of blade

Angle

Generally the equation for Cover Area windshield wiper A_w  is mathematically given by

Generally the equation for Cover Area windshield blade A_b  is mathematically given by

Therefore total Area wiped by windshield wiper A

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

so far i think you have the right thing going for you just remember soh cah toh

step-by-step explanation:

sine over hypotenuse

cosine   equals adjacent

tangent over hypotenuse