Ok why’s the picture upside down??.?
Area of the sector is 10 in²
Step-by-step explanation:
- Step 1: Find the area of the sector where radius = 5 in and central angle = 60°
Area of the sector = πr² (C/360), where r is radius and C is the central angle
⇒ Area = 3.14 × 5² × (60/360)
= 3.14 × 25 × 1/6
= 78.5/6 = 13.08 in² ≈ 10 in²
The answer
the full question is
If A(x1, y1), B(x2, y2), C(x3, y3), and D(x4, y4) form two line segments, and AB ⊥ CD, which condition needs to be met to prove AB ⊥ <span>CD?
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let be A(x1, y1)B(x2, y2) the first line, and C(x3, y3) D(x4, y4) the second
the slope of the first line is m = y2 -y1 / x2 - x1
the slope of the second line is m' = y4 -y3 / x4 - x3
so the condition needs to be met to prove AB ⊥ CD is
y2 -y1 y4 -y3
m x m' = --------- x ------------ = -1
x2 - x1 y4 -y3
Lets p = salesman's commission as percent
15,200 * p = 912
p = 912/ 15,200
p = 0.06
p = 6%
answer
6%