Brain Teasers
Circle
Imagine a square, with each side 4 cm long, inscribed in a circle. What is the radius of the circle?
Answer
Since each corner is touching the circle, find the hypotenuse using the Pythagorean Theorem:4^2 + 4^2 = x^2
x = Hypotenuse = 5.657
Divide by 2 to get the radius:
Radius = 2.828
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Comments
Not fun at all
The math is a little off, the hypotenuse is 5.657 cm, so the radius is 2.828 cm
OOPS! I thought it said circle inscribed in a square, so I just immediately said 2 cm!
oops yeah i though the circle was in the square...my bad
The answer is 2*sqrt(2) cm. The rest are approximations.
Why is this BASIC geometry question a teaser?
Why is this BASIC geometry question a teaser?
I got it, but the calculator used doesn't have a sqrt key, so I had to go elsewhere to get the square root of 32.
I got it too! Wow, we're geniuses
These comments are so irrational!
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