A circle has a radius of 12ft . find the length s of the arc intercepted by a central angle of 9° .

1 answer:

4 0

Plug in the values into the base equation;

$l=2 \pi r( \frac{ \alpha }{360} )$ <-- alpha is the degree

l=2 \pi (12)(9/360)
l=1.88495 ft ≈ 1.90 ft

Hope I helped :)

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PLEASE ANSWER ASAP! ONLY ONE QUESTION! POINTS GIVEN, BUT MUST BE CORRECT! QUESTION IS IN DA PROVIDED SCREENSHOT! Provide da answ

lianna [129]

Divide

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Keep, change, flip

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I’ll give the Brainliest to who answers this question with a reasonable explanation.

topjm [15]

Answer:

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Step-by-step explanation:

The composite figure shown in the picture consists of a semi-circle and a trapezoid. We can even break this trapezoid into a rectangle and two triangles for even simpler calculations. We can find the total area of the figure by simply adding the total area of the shapes we will break the figure into:

Area of semi-circle (half the area of a circle): $\frac{1}{2}\cdot 4.5^2\cdot \pi$

Area of trapezoid (average of bases multiplied by height): $16\cdot 7$

Thus, the total area of the figure is:

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Vinvika [58]

Answer:

$120^o,\,120^o,\,60^o,\,\,\,and\,\,\,60^o$

which agrees with the first answer in the list of possible options.

Step-by-step explanation:

We can use the fact that the addition of all four internal angles of a quadrilateral must render $360^o$ . Then we can create the following equation and solve for the unknown "h":