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Find the measure of one side of a square whose area is 144 cm2?
A square with an area of 144cm2 has sides of 12cm which is the square root of 144cm. 12cm x 12cm gives 144cm2.
A wire of length 20cm is bent so as form arc of circle of radius 12cm what is the angle subtended at the center in radians is?
When the angle is measured in radians arc_length = angle x radius. So, 20cm = angle x 12cm => angle = 20cm / 12cm ~= 1.67 radians
A right rectangular the rectangle base is 9Cm by 12Cm and the altitude of the pyramid is 12Cm find its volume?
Fist lets start by reviewing what the area of a pyramid is. Volume of a pyramid (with a rectangular base) is the Area of the Base x Height x 1/3. Where the 1/3 comes in I don't know but that's the equation. So we have a rectangle with the sides measuring 9cm x 12cm. The area of a rectangle is S1 * S2 so we have an area of 9cm*12cm=108cm2. We are given the height (altitude) as 12 cm so now that we know the area of the base, and the height we can find the volume. V= 108cm2 * 12cm *1/3 V= 1296cm3*1/3 V= 432cm3
What is the diameter of a CD 12mm 12cm or 12dm?
Close to 12cm
What is the circumference of a circle if the diameter is 12cm?
The circumference of a circle if the diameter is 12cm is 37.7cm
