Split the triangle into a 30-60-90 triangle. Since you have LM from that triangle, you can figure out the other sides. Then, using the leg from that triangle, the one next to it is a 45-45-90 triangle, meaning it's isosceles.
KM = 30 + 10√3
KL = 10√6
(sorry i'm not too sure if my "reasons" for statement/reason is correct)
Answer:
2.09 sq. units
Step-by-step explanation:
We can simply use the formula for area of a sector of a circle.
Area of sector =
Where is the angle and r is the radius.
<em>It is given that the angle is 15 and radius is 4. We plug them in and find the area:</em>
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<em>Thus area of sector is 2.09 sq. units.</em>
Answer: 4
<u>Step-by-step explanation:</u>
A = r²θ
50 = (5)²θ
100 = (5)²θ
100 = (25)θ
4 = θ
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Answer: 1570.80 cm²
<u>Step-by-step explanation:</u>
A = r²θ
A = (100)²
A = 500π
A = 1570.80
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Answer: 19.63 m²
<u>Step-by-step explanation:</u>
A = r²θ
= (5)²
=
= 19.63
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Answer: 15°
<u>Step-by-step explanation:</u>
180 = 12x
15 = x
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Answer: A
<u>Step-by-step explanation:</u>
Quadrant I: 0° - 90°
Quadrant II: 90° - 180°
Quadrant III: 180° - 270°
Quadrant IV: 270° - 360°
255° is in Quadrant III