• Draw a picture. If the chord equals the radius, then you've got an equilateral triangle with one vertex at the circle's center, inside a 60-degree sector of the circle. Each side equals the radius. The area of the sector is 60/360 = 1/6 the area of the circle. The area of the equilateral triangle can be worked out for side equals radius. The area of the piece between the chord and the circle (which is the answer you need) is the difference between the areas of the two pieces. Good luck with the details. If you've studied equilateral triangles then this isn't difficult.
  • idk.....

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