A circle has an area of approx. 78.5 square units. If the center of the circle is at (2,4). Which of the following points is on the circle?

A. (-6,4)
B. (2,-1)
C. (-4,-4)
D.(2,-9) ********

My thoughts are D - can you please check it...thanks

  1. 👍 0
  2. 👎 0
  3. 👁 1,098
  1. 78.5 = 25π, so r=5
    (2-2)^2 + (-9-4)^2 = 13^2, so D is wrong

    (A) (-6-2)^2 + (4-4)^2 = 64, so nope
    (B) (2-2)^2 + (-1-4)^2 = 25 we have a winner
    you can check (C) if you want.

    1. 👍 1
    2. 👎 0
  2. okay I understand now...thank you

    1. 👍 0
    2. 👎 0
  3. the answer is actually b, (2,-1)

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Solid Mensuration

    A circle having an area of 452 square inches is cut into two segments by a chord, which is 6 inches from the center of the circle. Find the area of the bigger segment.

  2. 7th grade masth asap hurry plz ms.sue somebody plz

    The area of a circle is found with the formula A = pi r^2, where pi represents 3.14. If a tile artist is placing tiles in a circular mosaic pattern and the area of the circle is 658 square feet, what is the approximate radius of

  3. Geometry

    Which one of these is NOT a step used when constructing an inscribed square using technology? A. Create a circle using the center with given points tool. B. Connect the points with a line through the center of the circle. C. Mark

  4. math

    1. A wire of length x is bent into the shape of a square. Express the area A as a function of x only. 2. A circle of radius x is inscribed in a square. Find the area inside the square but outside the circle as a function of x

  1. Math

    Consider the circles shown. Circle A has a radius of 6 inches. Circle B has a radius 20% greater than Circle A. The figure shows two circles labeled as Upper A and Upper B of different radii. The diameter of the circle Upper A is

  2. Math

    For any circle, which ratio is equal to the number π? Select all that apply. ***A. Circumference ------------------- Diameter B. Circumference ------------------- Radius ***C. Circumference ------------------- 2 Times Radius D.

  3. Geometry

    A circle is divided into two parts by a chord, 3cm a wat from the center. Find the area of the smaller part if the circle has an area of 201cm squared.

  4. Calculus

    A square is inscribed in a circle. If the area of the circle is 144(pi)cm*squared* --sorry the square root thing isnt showing up. Then the exact perimeter of the square is... I really don't get how to solve this, but the answer is

  1. Pre calculus

    You have a wire that is 71 cm long. You wish to cut it into two pieces. One piece will be bent into the shape of a square. The other piece will be bent into the shape of a circle. Let A represent the total area of the square and

  2. algebra

    A few more question Id like for someone to check please. 1) what are the vertex, focus, and directrix of the parabola with the given equation? x^2-8x-28y-124=0 vertex (4,-5) focus (0,7) directrix y=-12 2) write an equation of a

  3. Math

    Use 3.14 for π. Round answers to the nearest hundredth if necessary. The figure shows a circle with a point Upper X labeled at the center. Calculate the area of Circle X if the diameter is 13 inches. ____ square inches Calculate

  4. MATH please help

    A circle with radius 16 centimeters is inscribed in a square and it showes a circle inside a square and a dot inside the circle that shows 16 ft inbetween Which is the area of the shaded region A 804.25 square feet B 1024 square

You can view more similar questions or ask a new question.