ABCD is a rectangle and AO=13cm
Answers
Answer:
A way to calculate the area of a rhombus is to multiply the diagonals then divide by two. this works because the rhombus has 1/2 the area of the rectangle that encloses it and has the length and width equal to the diagonals of the rhombus.
but for a parallelogram u need to fight the height and base separately then (b X h) will be the area.....
the triangles two sides can be easily calculated by finding angles between the diagonals using trigonometric functions.
here as per ur question ST= 10 cm, and TR = 8 cm.
Now you can work ur way out easily for the angle QSR by drawing a line perpendicular to SR crossing the point Q. (by extrapolating line SR). Then you can the height of the parallelogram. Similarly find out the breadth and then the area.
You can't just use the formula you told for any parallelogram, the 1/2 X product of diagonals formula works only for rhombus,square and rectangles, not for other parallelograms.
