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Ratling [72]
3 years ago
15

9. The endpoints of a diameter of a circle are A (2,1) and B(5,5). Find the area of the circle in terms of . (1 point)

Mathematics
2 answers:
Georgia [21]3 years ago
5 0

Answer:

Area of the circle is 6.25π sq.unit

Step-by-step explanation:

The centre of the circle is at the mid point of a diameter. Th mid point of the diameter is at (5+22,5+12)or(72,3),which is centre. Radius is the distance from end point (5,5)to centre (72,3)∴r=√(5−72)2+(5−3)2=√1.52+4=√6.25=2.5∴

Area of the circle is Ac=π⋅r2=π⋅2.52=6.25π sq.unit[Ans]

just olya [345]3 years ago
5 0

The Area of the circle will be :

  • \dfrac{25}{4}  \pi =6.25 \pi\:   \:  \: \: unit {}^{2}

  • \approx19.625 \: \:   \: unit {}^{2}

solution is in attachment !

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Step-by-step explanation:

Domain x^2 - 9 {Solution: - infinity < x < infinity}

Interval notation (- infinity, infinity)

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Interval notation (-9, infinity)

Axis interception points of x^2 - 9:

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