What is 54.588 in square root form? Please help.
do you have an example of what you mean ?
I'm trying to find the volume of a triangular prism with a height of 7 inches and a base that is an equilateral triangle with sides of 6 inches. My answer so far is 54.588, but 2 of the answers I'm given are in square root form.. I'm just confused. I feel like I've done my work right, but the square roots are throwing me off.
It is easiest to start at the beginning. (square roots have decimals that go forever, and 54.588 is an approximation)
the area of the equilateral triangle with side = 6 is \[ \frac{s^2 \sqrt{3}}{4} \] using s=6 we get \[ \frac{36 \sqrt{3}}{4} = 9 \sqrt{3}\]
now multiply by the height 7 to get the volume \[ 63\sqrt{3} \]
Then don't you have to divide that by 2? How do you divide a square root by 2?
why do you want to divide by 2 ? and yes, you could divide a square root by 2
this is a by the way \[\frac{ \sqrt{a}}{b} = \sqrt{\frac{a}{b^2} }\] if you wanted to do that.
the are of a triangle is Area = \( \frac{1}{2} b\cdot h\) 1/2 the base times the height but for the equilateral triangle, you can use a different formula \[ Area = \frac{s^2 \sqrt{3}}{4} \]
Ohh, okay.. so I don't need to divide by 2 at all?
That's relieving. xD
Thank you so much. <3
Join our real-time social learning platform and learn together with your friends!