Thursday

April 17, 2014

April 17, 2014

Posted by **Anonymous** on Friday, December 28, 2012 at 11:46am.

- maths --plse help me.. -
**Steve**, Friday, December 28, 2012 at 5:04pmIf we label the points ABCD as given, then

AB and CD have slope -3/2

AD and BC have slope 1/2

so, the sides are parallel

AC is vertical

BD has slope -1/2

so, tanθ = 2 ==> θ = 63.4°

The calculations are easier if you plot the points and draw the diagonals.

**Related Questions**

maths --plse help me.. - prove that 1/2 * 1/3 * 1/4...

maths --plse help me.. - can we prove the formula to find the area of an octagon

maths --plse help me.. - The area of 3 adjacent faces of a cuboid are x,y,z.. if...

maths --plse help me.. - prove that the lines through a(0,-1,-1) and b(4,5,1) ...

maths --plse help me.. - Prove that the radius of the base of right circular ...

maths --plse help me.. - Let a,b,c be positive integers such that a divides b^2...

maths --plse help me.. - Let a,b,c be positive integers such that a divides b^2...

MATHS - Four points lie in a plane. They are partitioned into two pairs so that ...

maths - given the curve y=2x/(1+x^2)^2 (a) prove that dy/dx =2(1-x^2)/(1+x^2)^2...

maths --plse help me.. - ABCD ia a parallelogram whose diagonals intersecting at...