prove rohmbus ob²+oa²=od²+oc²
Anonymous:
is 'o' the meeting point of its diagonals?
yes
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we know that ab = cd ⇒equation 1 (all sides of a rohmbus are equal)
by ysing pythogaras theorem as angles aob = doc =90°
ab=oa²+ob², cd=oc²+cd²
by substituting these values in equation 1
oa²+ob²=oc²+cd²
by ysing pythogaras theorem as angles aob = doc =90°
ab=oa²+ob², cd=oc²+cd²
by substituting these values in equation 1
oa²+ob²=oc²+cd²
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