Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#1 Re: Help Me ! » Algebra problems. » 2016-09-14 13:32:25

Wangotango

How do you finish question number 1?

#2 Re: Help Me ! » 3d plane in a cube » 2016-08-20 02:26:42

Wangotango

Where does the plane intersect at s? Doesn't the plane go above line AD so it has to intersect above?

#3 Re: Help Me ! » 4 secants circle geometry » 2016-07-30 05:13:10

Wangotango

We're trying to prove that where the angle bisectors intersect is perpendicular

#4 Re: Help Me ! » 4 secants circle geometry » 2016-07-30 03:12:01

Wangotango

Ok thx I proved it, but how does RSB=RQB+D help? I'm still not sure how to finish this proof...

#5 Re: Help Me ! » 4 secants circle geometry » 2016-07-30 02:56:13

Wangotango

Can you prove that the exterior angle and remote interior angle of a cylic quadrilateral is equal?

#6 Re: Help Me ! » 4 secants circle geometry » 2016-07-29 10:05:03

Wangotango

Can someone help me find RQB, RSB. And also can someone tell me how that relates to PQR?

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