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
In a quadrilateral, define of the following Interior .
Complete of the following, so as to make a true statement:
The sum of the angles of a quiadrilateral is .... right angles.
Given : In quadrilateral ABCD ; ∠C = 64°, ∠D = ∠C – 8° ; ∠A = 5(a+2)° and ∠B = 2(2a+7)°.
Calculate ∠A.
ABCDE is a regular pentagon. The bisector of angle A of the pentagon meets the side CD in point M. Show that ∠AMC = 90°.
Observe the figure below and find out their name.
The three angles of a quadrilateral are 71°, 110°, 95°. Find its fourth angle.
Three angles of a quadrilateral are 75º, 90º and 75º. The fourth angle is ______.
The number of straight angles in the following figure is ______.
In the following figure, What is BD – BE?
Using the information given, name the right angles in part of figure:
AC ⊥ CD
