The area of a given hexagon is equal to the area of an equilateral triangle whose perimeter is 36 inches. Find the length of a side of the regular hexagon.
an equilateral triangle has 3 equal sides so than the perimeter is 36 inches so this mean that a side has a length of 12 inches so than you know that the length of a side of an equilateral triangle is equal 12 so can yo calculi arae of this triangle equal how many ?
sorry - can you calculi area of this triangle ?
base x height?
|dw:1467670160204:dw|
no area of a triangle is base time height divide 2
but in this case first you need calculi the length of this height - yes ?
yes?
any idea to how you can calculi the length of this height ?
you can using pythagora"s theorem or the sin of 60 degree - what you like using ?
or tan or cot ,what you like using
pyth
do you know exactly this i wan writing now
so what say pyth in this case ?
height so h^2 = ?
you dont know it ?
h^2 = 12^2 -6^2 yes ?
yes
so than h = ?
idk
h = sqrt(144-36) = ?
108
yes but sqrt108 = ?
If you like to try a different approach, here are some hints: |dw:1467675364166:dw|
Oops, the bottom line should read S^2/A=s^2/a s^2=S^2(a/A) s^2=S^2(1/6) s=S*sqrt(1/6)=S/sqrt(6)
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