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.
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
Given here are some figures:
 |
 |
 |
 |
 |
 |
 |
 |
Classify each of them on the basis of the following:
- Simple curve
- Simple closed curve
- Polygon
- Convex polygon
- Concave polygon
The perimeter of a parallelogram is 22 cm . If the longer side measures 6.5 cm what is the measure of the shorter side?
In a quadrilateral, define of the following Diagonals .
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 angles are there?
Which of the following quadrilateral is not a rhombus?
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 =
Given : In quadrilateral ABCD ; ∠C = 64°, ∠D = ∠C – 8° ; ∠A = 5(a+2)° and ∠B = 2(2a+7)°.
Calculate ∠A.
ABCDE is a pentagon in which AB is parallel to DC and ∠A : ∠E : ∠D = 1 : 2 : 3. Find angle A.
ΔPQR and ΔSQR are on the same base QR with P and S on opposite sides of line QR, such that area of ΔPQR is equal to the area of ΔSQR. Show that QR bisects PS.
In the quadrilateral ABCD, AB = BC and AD = DC Measure of ∠BCD is
Which of the following is not true for a parallelogram?
In quadrilateral HOPE, the pairs of opposite sides are ______.
Number of angles less than 180° in figure is ______ and their names are ______.
Using the information given, name the right angles in part of figure:
RS ⊥ RW
Using the information given, name the right angles in part of figure:
OP ⊥ AB
Draw a rough sketch of a quadrilateral KLMN. State two pairs of opposite angles.
Draw a rough sketch of a quadrilateral KLMN. State two pairs of adjacent sides.
Draw a rough sketch of a quadrilateral KLMN. State two pairs of adjacent angles.
