Pythagoras theorem and its converse in two and three dimensions including: chord length distance of a chord from the centre of a circle distances on a grid
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In a right angled triangle square of
the hypoten use is equal to the sum of the squares of the base and altitude
2) In a triangle if the sum of the squares of the Smaller sides are
equal to the square of the longer sid
e then the triangle is a right angle triangle
,3) Ifchord length is c, radius r, and the distance from th centre of the circle to the centre of the chord
then c=2vr^2-d^2
d =vr^2-(c/2) ^2
r =vd^2+(c/2)^2
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