2 years ago

Can some one help me solve these 3 questions?

Mathematics

1 answer:

worty [1.4K]2 years ago

5 0

7. A
8. Is the 1st picture
9.is the second picture

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For a circle with a diameter of 6 meters, what is the measurement of a central angle (in degrees) subtended by an arc with a len

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Answer:

$\boxed{\boxed{\theta=150^{\circ}}}$

Step-by-step explanation:

We know that,

$\text{Arc length}=r\cdot \theta$

where,

r = radius,

θ = central angle in radian.

Given,

diameter = 6 m, so radius = 3 m.

$\text{Arc length}=\dfrac{5}{2}\pi$

Putting the values,

$\Rightarrow \dfrac{5}{2}\pi=3\theta$

$\Rightarrow \theta=\dfrac{5}{2\times 3}\pi$

$\Rightarrow \theta=\dfrac{5}{6}\pi=\dfrac{5}{6}\times 180^{\circ}=150^{\circ}$

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Step-by-step explanation:

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The volume of a cone is 196π ft ^3 . It's radius is 7 ft. Find the height.

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Answer:

the height is about 12

Step-by-step explanation:

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Step-by-step explanation:

171x6=1026

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