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rainbowboi
02.08.2019 •
Mathematics
The diameter of a circle is 8cm. a central angle of the circle intercepts an arc of 12 cm. what is the radian measure of the angle?
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Ответ:
A = (θ/2π)(2πr)
where r is the radius. We are given that the value of diameter is 8 cm. Radius can be calculated by dividing the given diameter by 2.
radius = 8 cm/2 = 4 cm
Substituting the known values to the equation above,
12 cm = (θ/2π)(2π)(4 cm)
The value of θ from the equation is 3.
3 radians
Ответ:
.
Step-by-step explanation: