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What is the radius of a cylinder with the volume of 375pi and height of 15 cm?
Vol = pi*r2*h so 375*pi = pi*r2*15 r2 = 25 so that r = 5 cm.
What is the remainder of 549 divided by 36 in 1 r2 form?
549/36 = 15 r9
How do you calculate the radius of a sector with an angle of 1.5 radians and 15cm. I have tried but I only ever get the answer of 10 or 2squareroot10 and the right answer is 2squareroot5?
To produce the required answer, the question should state, "How do you calculate the radius of a sector with an angle of 1.5 radians and an area of 15 sq cm ?If an angle of 1.5 radians sweeps out an area of 15 sq cm then this is proportional to an angle of 2π radians sweeping out the area of the circle, namely πr2.1.5/2π = 15/πr2 : 1.5/2 = 15/r2 : r2 = (2 x 15)/1.5 = 30/1.5= 20If r2 = 20 then r = √20 = √(4 x 5) = 2√5
What is r2 when measuring the volume of a cylinder?
r2 (r2) refers to the radius of the cylinder squared.
How do you find the surface area of a sphere with a radius of 15 inches?
Use this formula (Ï€ = Pi): Surface area = 4Ï€r2
