Comprehensive math worksheet for students to practice calculating the radius and diameter of circles using circumference and area formulas, featuring four sections with varied problems and diagrams.

A worksheet titled "Finding the Radius or Diameter From the Circumference and Area" with four sections (A, B, C, D) containing math problems involving circles, formulas, and diagrams. Section A has algebraic equations, Section B asks to find diameter or radius from circumference, Section C involves finding missing values in area equations, and Section D provides area values to find radius or diameter. The worksheet is from Cazoom Maths Resources and is labeled for GCSE Tier: Foundation/Higher.

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Final Answer:
Section A:
1) 6
2) 4
3) 7.5
4) 10/π ≈ 3.18
5) 6/π ≈ 1.91
6) 25/(2π) ≈ 3.98

Section B:
1) d = 12 cm
2) d = 20/π ≈ 6.37 cm
3) d = 180/π ≈ 57.30 mm
4) r = 16 cm
5) r = 24/π ≈ 7.64 cm
6) r = 0.35/π ≈ 0.11 m

Section C:
1) 5
2) 9
3) √(400/π) ≈ 11.28

Section D:
1) r = 6 cm
2) r = √(1.44) = 1.2 m
3) r = √(100/π) ≈ 5.64 cm
4) d = 14 cm
5) d = √(348/π) ≈ 10.55 cm
6) d = √(14/π) ≈ 2.11 m

Parent Tip: Review the logic above to help your child master the concept of finding the circumference of a circle worksheet.

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