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Earn +20 ptsQ: What is the perimeter of a semicircle if it's radius is 280 cm?
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What is the perimeter of a 12 cm semicircle?
it is 6 and 2 or 3 and 3
What is the semi circle radius 10cm?
It is half of a circle; the circle's radius (and that of the semicircle) is 10 cm.
What is the radius of a circle of perimeter 20 cm?
Pi= 3.1416 circle / 3.1416=diameter
A semi circular sheet of diameter 28 centimetre us bent into an open conical cup find depth and capacity of a cup?
Depth of cone = Radius of semicircle = 28/2 cm = 14 cm Circumference of the base of cone = Arc of semicircle = 0.5*pi*28 = 14*pi cm Therefore radius of base = 14*pi/(2*pi) = 7 cm Capacity = 1/3*pi*r2*h where r is the radius of the base of the cone. = 1/3*pi*72*14 = 718 cm3
Perimeter of a square with 7-cm sides?
The perimeter is 7 cm
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