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3 years ago

If you answer this question your cool

Mathematics

2 answers:

nata0808 [166]3 years ago

7 0

Answer:

Step-by-step explanation:

zavuch27 [327]3 years ago

5 0

Answer:

D. 40

Step-by-step explanation:

Triangles add up to 180 degrees so...

110 + 30 + x = 180

140 + x = 180

x = 40

Yeah Ik!

You're cool too!

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Read 2 more answers

HELP DUE IN 10 MINS!

Scilla [17]

Answer:

$\checkmark \text{B. The area of the circle is } 729\pi,\\\checkmark \text{D. The arc length of the sector is } 12\pi$

Step-by-step explanation:

Area of a circle with radius $r$ : $r^2\pi$

Circumference of a sector with radius $r$ : $2r\pi$

Area of sector with angle $\theta$ : $r^2\pi\cdot \frac{\theta}{360}$ .

Arc length of sector with angle $\theta$ : $2r\pi\cdot \frac{\theta}{360}$

Using these equations, we get the following information:

Area of circle: $27^2\pi=729\pi$

Circumference of a circle: $2\cdot 27\cdot \pi=54\pi$

Area of sector: $27^2\pi\cdot \frac{80}{360}=162\pi$

Arc length of sector: $2\cdot 27\cdot \pi \cdot \frac{80}{360}=12\pi$

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2 years ago