Advertisements
Advertisements
Question
In a parallelogram ABCD, its diagonals AC and BD intersect each other at point O.
If AC = 12 cm and BD = 9 cm ; find; lengths of OA and OD.
Advertisements
Solution
∵ When diagonals AC and BD intersect each other at point O,
then OA = OC = `1/2` AC
and OB = OD = `1/2` BD
∴ OA = `1/2 xx "AC" = 1/2 xx 12 = 6` cm
and OB = `1/2 xx "BD" = 1/2 xx 9 = 4.5` cm
APPEARS IN
RELATED QUESTIONS
In a quadrilateral, define of the following Adjacent angles .
Complete of the following, so as to make a true statement:
A quadrilateral has ...... angles.
Complete of the following, so as to make a true statement:
The sum of the angles of a quiadrilateral is .... right angles.
In Fig. 16.20, find the measure of ∠MPN.
The sum of the interior angles of a polygon is three times the sum of its exterior angles. Determine the number of sided of the polygon.
ABCD is a trapezium in which AB || DC. M and N are the mid-points of AD and the respectively. If AB = 12 cm, MN = 14 cm, then CD =
From the following figure find;
- x
- ∠ABC
- ∠ACD
A diagonal of a rectangle is inclined to one side of the rectangle at 25º. The acute angle between the diagonals is ______.
If APB and CQD are two parallel lines, then the bisectors of the angles APQ, BPQ, CQP and PQD form ______.
Can we have two obtuse angles whose sum is a reflex angle? Why or why not?
