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How to find the length of a half a circle?
The circumference of a circle of radius r cm is 2*pi*r cm so the length of the semi-circular arc is pi*r cm. The length of the diameter is 2*r cm so the total length is (pi + 2)*r cm
What is the volume of a cone with a base area of 11.5 pi cm squared and the height of 20 cm?
The formula for finding the volume of a cone is 1/3(pi)(r)(r)(h) where r is the radius and his the height, or in your case, 1/3(B)(h) where B is the area of the base and h is the height since part of the original formula is finding the base area [(pi)(r)(r)]. Plug your measurements into your calculator and you get 76 2/3 pi square cm, or 240.7 square cm.
What is the area of a circle whose radius is 6 cm?
The area of a circle with radius r is pi*r*r where pi = 3.1416 approx. When r = 6 cm, the area is 113.1 sq cm.
How wide is a nickel cm R R R?
A US 5 cent coin (a nickel) has a diameter of 21.21 mm -. That is 2.121 cm
How do you find the radius of a cylinder with the volume of 500 cc and the height of 6 cm?
Volume = pi r^2 h 500 cc = pi (6 cm) r^2 500 cc = 18.8496 r^2 26.386 = r^2 5.137 cm = r call it 5 cm radius
How much water is in a pipe with a radius of 26 millimeters and 1 meter long?
Assuming the pipe is circular in profile, then it makes the shape a cylinder. Hence volume (cyl) = pi r^2 h pi = 3.141592..... r = 26 mm = 2.6 cm h = 1.0 = 100 cm Hence substiting. V(cyl) = 3.131592... (2.6)^2 x 100 V = 2123.716634 cm^3 = There being 1000 cm^2 in 1 litre (1 dm^3) Hence vol = 2.123716634 L V =~ 2.12 L is the amount of water in the pipe.
If the radius of a circle is 1 cm what is the circumference of the circle?
we know circumference=2*pi*r; where r=1; circumeference=2*3.14*1=6.28 cm
How many 30cm rulers does it take to make a meter?
1 metre/30 cm = 100 cm/30 cm = 3.33... recurring.
If the curved surface area of a cone is 550 cm and its height is 24 cm find the volume of the cylinder?
A=Pirh 550cm = Pi (r) 24cm 550/ Pi (24) = r r = 7.3 cm V= 1/3 Pi r^2 h V= 1/3 Pi (7.3)^2 (24) V= 1339.32cm^3
How to find the length of a half a circle?
The circumference of a circle of radius r cm is 2*pi*r cm so the length of the semi-circular arc is pi*r cm. The length of the diameter is 2*r cm so the total length is (pi + 2)*r cm
How many cm is in 1 meter?
gosh how old r ya? it's 100cm's
What is the volume of a cone with a base area of 11.5 pi cm squared and the height of 20 cm?
The formula for finding the volume of a cone is 1/3(pi)(r)(r)(h) where r is the radius and his the height, or in your case, 1/3(B)(h) where B is the area of the base and h is the height since part of the original formula is finding the base area [(pi)(r)(r)]. Plug your measurements into your calculator and you get 76 2/3 pi square cm, or 240.7 square cm.
What is the volume and surface of a right circular cylinder?
If the radius is r cm and the height is h cm, then Volume = pi*r^2*h cm^3 and Surface area = 2*pi*r(r+h) cm^2
What is the area of a circle whose radius is 6 cm?
The area of a circle with radius r is pi*r*r where pi = 3.1416 approx. When r = 6 cm, the area is 113.1 sq cm.
How do you find the radius of a cylindrical can if the water level falls by 10 cm when 3 liters of water is removed?
The main thing to understand in a problem like this is that the water that is removed formed a cylinder before it was removed. So we had a cylinder with a volume of 3 litres. The volume of a cylinder is given by the formula: V = pi * h * r * r If we blindly put in our facts we get: 3 litres = pi * 10 cm * r cm * r cm There's a problem because we have different units on either side of the equation. This is easily put right because we know that a litre is 1000 cubic centimetres. 3000 cm * cm * cm = pi * 10 cm * r cm * r cm We can 'cancel' the units out on both sides now. 3000 = pi * 10 * r * r and solve for r r = sqrt ( 3000 / ( 10 * pi ) )
How wide is a nickel cm R R R?
A US 5 cent coin (a nickel) has a diameter of 21.21 mm -. That is 2.121 cm
How do you find the radius of a cylinder with the volume of 500 cc and the height of 6 cm?
Volume = pi r^2 h 500 cc = pi (6 cm) r^2 500 cc = 18.8496 r^2 26.386 = r^2 5.137 cm = r call it 5 cm radius
