Advertisements
Advertisements
Question
One diagonal of a rectangle is 18 cm. What is the length of its other diagonal?
Solution
∵ In a rectangle, diagonals are equal
⇒ AC = BD
Given, one diagonal of a rectangle = 18cm
∴ Other diagonal of a rectangle will be = 18cm
i.e. AC = BD = 18cm.
APPEARS IN
RELATED QUESTIONS
Complete of the following, so as to make a true statement:
A quadrilateral has ..... vertices, no three of which are .....
Complete of the following, so as to make a true statement:
The sum of the angles of a quiadrilateral is .... right angles.
In Fig. 16.19, ABCD is a quadrilateral.
How many pairs of adjacent angles are there?
A quadrilateral has all its four angles of the same measure. What is the measure of each?
In a quadrilateral ABCD, the angles A, B, C and D are in the ratio 1 : 2 : 4 : 5. Find the measure of each angle of the quadrilateral.
In ΔABC, E is the mid-point of median AD such that BE produced meets AC at F. IF AC = 10.5 cm, then AF =
Three angles of a quadrilateral are equal. If the fourth angle is 69°; find the measure of equal angles.
Use the information given in the following figure to find the value of x.
In a trapezium ABCD, side AB is parallel to side DC. If ∠A = x° and ∠D = (3x – 20)°; find the value of x.
Two diagonals of an isosceles trapezium are x cm and (3x – 8) cm. Find the value of x.
The three angles of a quadrilateral are 71°, 110°, 95°. Find its fourth angle.
Find the angles of a pentagon which are in the ratio 4: 4: 6: 7: 6.
In a quadrilateral ABCD, ∠A = 72° and ∠C is the supplementary of ∠A. The other two angles are 2x – 10 and x + 4. Find the value of x and the measure of all the angles
If one angle of a cyclic quadrilateral is 75°, then the opposite angle is
Three angles of a quadrilateral are 75º, 90º and 75º. The fourth angle is ______.
If bisectors of ∠A and ∠B of a quadrilateral ABCD intersect each other at P, of ∠B and ∠C at Q, of ∠C and ∠D at R and of ∠D and ∠A at S, then PQRS is a ______.
ABCD is a quadrilateral in which AB || DC and AD = BC. Prove that ∠A = ∠B and ∠C = ∠D.
In figure, if point A is shifted to point B along the ray PX such that PB = 2PA, then the measure of ∠BPY is ______.
Draw a rough sketch of a quadrilateral KLMN. State two pairs of opposite sides.
Draw a rough sketch of a quadrilateral KLMN. State two pairs of adjacent angles.