Use π = 3 19. Calculate the area of a circle with diameter of 14cm
2 answers:
The equation for Area of circle: A = πr² Using pi as 3.14 r = radius, d = diameter r = d/2 r = 14/2 r = 7 A = (3.14)7² A = 49(3.14)A = 153.86 cm² Using pi as 3.19 A = πr² A = (3.19)7² A = 49(3.19)A = 156.31cm ² hope this helps
Area of a circle = PI x r^2 you state pi = 3.19 ( it is usually 3.14, if it is a typo see below ) diameter = 14cm r = 1/2 the diameter, so r = 7 cm area = 3.19 x 7^2 area = 3.19 x 49 = 156.31 square cm ( if PI = 3.14, area = 3.14 * 49 = 153.86 square cm)
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