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Earn +20 ptsQ: What is the area of 9cm x pi?
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Area of 9cm and 10 cm?
The area of a rectangle of sides 9cm and 10cm is:9cm x 10cm = 90cm2This is equivalent to 0.009m2
How do you work out the surface area of a cylinder with the height of 9cm and the diametre of 6cm?
Surface area = (2*pi*32) + (pi*6*9)) = 72*pi which is about 226 square cm
What is the area of a triangle 4cm X 9cm?
18cm 2
What is the surface area of a sphere with a circumference of 9cm?
You can divide this problem into two steps: 1) Divide the circumference by (2 x pi) to get the radius. 2) Use this radius in the standard formula for the surface area of the sphere.
How do you find the circumference of a circle if you have the area and nothing else?
Area = (pi) x (Radius)2Radius = sqrt(area/pi)Circumference = (2 pi) x (Radius) = (2 pi) x sqrt(area/pi)Circumference = 2 x sqrt(pi x area)
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