Mathematics
Grade-7
Easy

Question

Determine the radius of the circle having 26.69 cm as the circumference.

  1. 5.5
  2. 4.4
  3. 8.5
  4. 7.5

hintHint:

the circumference of the circle c = 2 x straight pi space straight x space radius

The correct answer is: 8.5


    C equals 2 pi r comma
2 pi r equals 26.69 comma
2 cross times 3.14 cross times r equals 26.69 comma
r equals fraction numerator 26.69 over denominator 3.14 end fraction comma
r equals 8.5
    r is the radius = 8.5

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