Advertisements
Advertisements
प्रश्न
State with reason whether the following statement is ‘true’ or ‘false’.
Every parallelogram is a rectangle.
विकल्प
True
False
Advertisements
उत्तर
This statement is False.
Reason:
If all angles of a quadrilateral are right angles, then it is a rectangle. It is not necessary for all angles of a parallelogram to be right angles. Therefore, not every parallelogram is a rectangle.
APPEARS IN
संबंधित प्रश्न
Explain why a rectangle is a convex quadrilateral.
The shorter side of a parallelogram is 4.8 cm and the longer side is half as much again as the shorter side. Find the perimeter of the parallelogram.
Two adjacent angles of a parallelogram are (3x − 4)° and (3x + 10)°. Find the angles of the parallelogram.
In a parallelogram ABCD, the diagonals bisect each other at O. If ∠ABC = 30°, ∠BDC = 10° and ∠CAB = 70°. Find:
∠DAB, ∠ADC, ∠BCD, ∠AOD, ∠DOC, ∠BOC, ∠AOB, ∠ACD, ∠CAB, ∠ADB, ∠ACB, ∠DBC and ∠DBA.
Diagonals of a parallelogram ABCD intersect at O. AL and CM are drawn perpendiculars to BD such that L and M lie on BD. Is AL = CM? Why or why not?
Which of the following statement is true for a rectangle?
Its diagonals are equal.
Which of the following statement is true for a rectangle?
Its diagonals are perpendicular and bisect each other.
Which of the following statement is true for a rectangle?
All rectangles are squares.
Which of the following statement are true for a square?
It has all its sides of equal length.
Which of the following statement true for a square?
Its diagonals bisect each other at right angle.
Fill in the blank in the following, so as to make the statement true:
A square is a rhombus in which .....
Fill in the blank of the following, so as to make the statement true:
A square is a rectangle in which .....
A window frame has one diagonal longer than the other. Is the window frame a rectangle? Why or why not?
The sides of a rectangle are in the ratio 4 : 5. Find its sides if the perimeter is 90 cm.
Draw a rectangle ABCD such that l(AB) = 6.0 cm and l (BC) = 4.5 cm.
Rectangle is a regular quadrilateral.
Every parallelogram is a rectangle.
In rectangle READ, find ∠EAR, ∠RAD and ∠ROD
A rectangular MORE is shown below:
Answer the following questions by giving appropriate reason.
- Is RE = OM?
- Is ∠MYO = ∠RXE?
- Is ∠MOY = ∠REX?
- Is ΔMYO ≅ ΔRXE?
- Is MY = RX?
