Find area of circle, radius 5 cm., A) 25.5 cm², B) 50.2 cm², C) 78.5 cm², D) 100.3 cm², Circle radius 7 cm, find circumference., A) 21.9 cm, B) 43.96 cm, C) 46.2 cm, D) 49.1 cm, Find semi-circle area, radius 6 cm., A) 18.2 cm², B) 36.8 cm², C) 56.5 cm², D) 72.4 cm², Circle has diameter 12 cm, find circumference., A) 24.5 cm, B) 37.68 cm, C) 41.2 cm, D) 48.5 cm, Find circle area, diameter equals 10 cm., A) 78.5 cm², B) 100.2 cm², C) 120.6 cm², D) 150.4 cm², Semi-circle radius 4 cm, find area., A) 12.3 cm², B) 18.9 cm², C) 25.1 cm², D) 30.8 cm², Find circumference of circle, radius 9 cm., A) 42.1 cm, B) 56.5 cm, C) 63.8 cm, D) 72.9 cm.

MATH6 - Circle Formulas

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