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Geometry Homework Assistance: Circumference, Radius, Perimeter

Solve exercises on circumference formulas, find radius & diameter, calculate perimeters of shapes, with step-by-step explanations.

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Geometry Homework Assistance: Circumference, Radius, Perimeter

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  1. Circumference

  2. Homework Write the formula first ! Pg 176 Exercise 9b No. 13, 15, 16, 17

  3. Homework Check 13. Radius 154 mm

  4. Homework Check 15. Radius 7.7 m

  5. Homework Check 16. Radius 34.6 cm

  6. Homework Check 17. Diameter 511 mm

  7. Circumference

  8. FIND THE DIAMETER of a circle with a CIRCUMFERENCE OF 376.80 CM. WORKING: 376.80cm Circumference

  9. Find the radius of a circle if its circumference is ……... (a) 25.12 cm Answer: 4 cm (b) 37.68 m Answer: 6 m Round your answer to the nearest whole number!

  10. Draw Half a Circle

  11. Draw a Quarter Circle

  12. Perimeter Find the perimeter of this shape 8cm Length of diameter = 8cm Perimeter of shape = 12.6 + 8 = 20.6cm(1dp)

  13. Perimeter Find the perimeter of this shape 3cm Length of radii = 3cm + 3cm = 6cm Perimeter of shape= 4.7 + 6 =10.7cm(1dp)

  14. Perimeter Find the perimeter of this shape 3cm 10cm Length of straight sides = 3 + 3 +10 =16cm Perimeter of shape = 15.7 + 16 = 31.7cm(1dp)

  15. Worksheet: Finding the Perimeter

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