Rear Windshield Wiper (Giving brainliest to correct answer)
Find Arc lengths and areas of sectors of circles

56.0% not wiped

Step-by-step explanation:

150° = 5π/6 rad

Area wiper covers

Aw = ½(5π/6)24² - ½(5π/6)2² = 238⅓π in² ≈ 748.75 in²

Area of window

(66 - 54)/2 = 6in

h = √(29² - 6²) = 28.37 in

A = 28.37(54 + 6) = 1,702.35

percentage not cleared by wiper is

(1,702.35 - 748.75) / 1,702.35 = 0.56016 ≈ 56.0%

Arc length ACB = rθ = 24(5π/6) = 20π ≈ 62.8 inches

inner arc length = 2(5π/6) = 5π/3 ≈ 5.23 inches

80

Step-by-step explanation:

The area of a trapezoid is calculated by dividing sum of bases and that multiplied by height

(a+b)/2 × h (a : base, b: base, h: height)

the bases given here are 3 and 17 and height is 8

(17+3) ÷ 2 × 8 = 80