: Ram P. Tubio
just try drawing it. Often the answers become much clearer with a picture.
For example once you draw the parallelogram with diagonals and angle you will notice that you have a triangle formed by half of each diagonal and one of the sides. You also have the angle where the diagonals meet as part of this triangle.
With 2 known sides (7/2 and 9/2) and a known angle (52 deg) you can find the other side, which is the short side of the parallelogram.
Hopefully you know the law of cosines...
c^2 = a^2 + b^2 - 2ab.cos(C)
c^2 = (7/2)^2 + (9/2)^2 - 2(7/2)(9/2).cos(52)
c^2 = 49/4 + 81/4 - 126/4.cos(52)
c^2 = (49 + 81 - 126.cos(52))/4
c = sqrt(130 - 126.cos(52))/2
c ~= 3.620 inches
Then you just do the same thing again using the supplementary angle, 180-52 = 128.
c = sqrt(130 - 126.cos(128))/2
c ~= 7.204 inches
Yes the perpendicular diagonals intersect at right angles or 90 degrees
90 degrees - the parallelogram is a rectangle (or a square) if the diagonals are equal.
A parallelogram
The diagonals of a rhombus intersect at 90 degrees therefore it has 4 right angle triangles with sides of 5 and 6 respectively with the hypotenuse being a side of the rhombus. So using Pythagoras' theorem: 52+62 = 61 and the square root of this is the length of each side of the rhombus which is approximately 7.81 units of measurement
The 2 diagonals of a rhombus intersect each other at right angles which is 90 degrees.
a square,rhombus,parallelogram does intersect at 90 degrees but a rectangle does not intersect at 90 degrees and im not sur about trapezuim and kite:)
Because the diagonals of a rhombus intersect each other at 90 degrees whereas in a parallelogram they don't
A square, a rhombus and a kite have diagonals that intersect each other at 90 degrees.
It is a kite that has diagonals that intersect each other at 90 degrees.
None but the diagonals intersect at 90 degrees
No but they do intersect each other at 90 degrees
A rhombus is a special parallelogram in its own right inasmuch it has 4 equal sides and 2 diagonals that intersect at 90 degrees
Yes the perpendicular diagonals intersect at right angles or 90 degrees
No, the diagonals of a rhombus are not congruent, but they do intersect each other at 90 degrees.
The diagonals of a rhombus intersect each other at 90 degrees
90 degrees - the parallelogram is a rectangle (or a square) if the diagonals are equal.
No but the diagonals of a square, rhombus and a kite do intersect each other at 90 degrees