Advertisements
Advertisements
प्रश्न
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
उत्तर
∵ 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
संबंधित प्रश्न
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 number of pairs of opposite angles of a quadrilateral is .......
In Fig. 16.19, ABCD is a quadrilateral.
How many pairs of opposite sides are there?
Three angles of a quadrilateral are equal. Fourth angle is of measure 150°. What is the measure of equal angles.
ABCDE is a regular pentagon. The bisector of angle A of the pentagon meets the side CD in point M. Show that ∠AMC = 90°.
The angles A, B, C and D of a quadrilateral are in the ratio 2 : 3 : 2 : 3. Show this quadrilateral is a parallelogram.
Which of the following is not true for a parallelogram?
If a bicycle wheel has 48 spokes, then the angle between a pair of two consecutive spokes is ______.
Using the information given, name the right angles in part of figure:
RT ⊥ ST
Using the information given, name the right angles in part of figure:
AC ⊥ CD
