English

In the Following Figures, Abcd is a Parallelogram. Find the Values of X and Y. - Mathematics

Advertisements
Advertisements

Question

In the following figures, ABCD is a parallelogram.

find the values of x and y.

Sum

Solution

ABCD is a parallelogram.
Therefore
AD = BC
AB = DC
Thus
4y = 3x - 3                ....[ Since AD = BC ]
⇒ 3x - 4y = 3            ....(i)
6y + 2 = 4x               ....[ Since AB = DC ]
⇒  4x - 6y = 2           ....(ii)

Solving equations (i) and (ii) we have
x = 5
y = 3.

shaalaa.com
Types of Quadrilaterals
  Is there an error in this question or solution?
Chapter 14: Rectilinear Figures [Quadrilaterals: Parallelogram, Rectangle, Rhombus, Square and Trapezium] - Exercise 14 (B) [Page 176]

APPEARS IN

Selina Concise Mathematics [English] Class 9 ICSE
Chapter 14 Rectilinear Figures [Quadrilaterals: Parallelogram, Rectangle, Rhombus, Square and Trapezium]
Exercise 14 (B) | Q 7.1 | Page 176

RELATED QUESTIONS

ABCD is a rectangle in which diagonal AC bisects ∠A as well as ∠C. Show that:

  1. ABCD is a square
  2. diagonal BD bisects ∠B as well as ∠D.

ABCD is a parallelogram and AP and CQ are perpendiculars from vertices A and C on diagonal BD (See the given figure). Show that

  1. ΔAPB ≅ ΔCQD
  2. AP = CQ


State, 'true' or 'false'
The diagonals of a parallelogram bisect each other at right angle.


State, 'true' or 'false' 
If two adjacent sides of a parallelogram are equal, it is a rhombus.


In the given figure ABCD is a rhombus with angle A = 67°

If DEC is an equilateral triangle, calculate:

  1. ∠CBE
  2. ∠DBE

The given figure shows a square ABCD and an equilateral triangle ABP.

Calculate: (i) ∠AOB
                (ii) ∠BPC
                (iii) ∠PCD
                (iv) Reflex ∠APC


In the given figure, ST ∥ PR. Prove that: area of quadrilateral PQRS = area of ΔPQT.


In the figure, ABCD is a parallelogram and APD is an equilateral triangle of side 80cm, Calculate the area of parallelogram ABCD.


A quadrilateral ABCD is such that diagonals BD divides its area into two equal parts. Prove that BD bisects AC.


Two adjacent sides of a parallelogram are 34 cm and 20 cm. If one of its diagonal is 42 cm, find: area of the parallelogram.


Two adjacent sides of a parallelogram are 20cm and 18cm. If the distance between the larger sides is 9cm, find the area of the parallelogram. Also, find the distance between the shorter sides.


A rectangular hall of 40m by 24m is covered with carpets of size 6m x 4m. Find the number of carpets required to cover the hall.


The area of a square garden is equal to the area of a rectangular plot of length 160m and width 40m. Calculate the cost of fencing the square garden at Rs.12per m.


Find the perimeter and area of a square whose diagonal is `5sqrt(2)"cm"`. Give your answer correct to two decimal places if `sqrt(2)` = 1.414.


Find the area of a rhombus whose perimeter is 260cm and the length of one of its diagonal is 66cm.


A rectangular field is 240m long and 180m broad. In one corner a farm house is built on a square plot of side 40m. Find the area of the remaining portion and the cost of fencing the open sides Rs.25per m.


How many tiles, each of area 625 cm2, will be needed to pave a footpath which is 1 m wide and surrounds a grass plot of size 38 m x 14 m?


ABCD is a trapezium in which AB || DC and ∠A = ∠B = 45º. Find angles C and D of the trapezium.


The opposite sides of a rectangle are equal in length.


Name polygon.

Make two more examples of this.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×