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nydimaria [60]
2 years ago
13

What is the measure of the corresponding central angle for XY in radians?

Mathematics
2 answers:
beks73 [17]2 years ago
5 0

Answer:

4 radians

Step-by-step explanation:

Arc Length (Radians) = rθ

Given Arc Length XY  = 40cm and radius, r = 10cm,

we will substitute these 2 values into the formula to find θ.

(10)θ  = 40

θ = 40 / 10

= 4 radians

ipn [44]2 years ago
3 0

Answer:

A

Step-by-step explanation:

the length of arc XY is calculated as

arc = circumference of circle × fraction of circle

      = 2πr × \frac{0}{2\pi } ( r is radius and Θ is central angle )

here arc = 40 and r = 10 , then

2π × 10 ×\frac{0}{2\pi } = 40

20π × \frac{0}{2\pi } = 40 ( cancel 20π and 2π by 2π )

10Θ = 40 ( divide both sides by 10 )

Θ = 4 radians

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