State whether True or False.
(a) All rectangles are squares
(b) All rhombuses are parallelograms
(c) All squares are rhombuses and also rectangles
(d) All squares are not parallelograms
(e) All kites are rhombuses
(f) All rhombuses are kites
(g) All parallelograms are trapeziums
(h) All squares are trapeziums
Solution:
Shapes |
True or False |
Reason |
|
A |
All rectangles are squares. |
False |
A rectangle need not have all sides equal hence it is not square. |
B |
All rhombuses are parallelograms |
True |
Since the opposite sides of a rhombus are equal and parallel to each other, it is also a parallelogram |
C |
All squares are rhombuses and are also rectangles. |
True |
All squares are rhombuses as all sides of a square are of equal lengths. All squares are also rectangles as each internal angle is 90 degrees. |
D |
All squares are not parallelograms. |
False |
The opposite sides of a parallelogram are of equal length hence squares with all sides equal are parallelograms. |
E |
All kites are Rhombuses. |
False |
A rhombus has all sides of equal length whereas a kite does not have all sides of equal length. |
F |
All rhombuses are kites. |
True |
Since all rhombuses have equal sides and diagonals bisect each other. |
G |
All parallelograms are trapeziums. |
True |
Since all trapeziums have a pair of parallel sides which is true for parallelograms as well. |
H |
All squares are Trapeziums. |
True |
All trapeziums have a pair of parallel sides, hence all squares can be trapezium. |
☛ Check: NCERT Solutions for Class 8 Maths Chapter 3
Video Solution:
State whether True or False. (a) All rectangles are squares (b) All rhombuses are parallelograms (c) All squares are rhombuses and also rectangles (d) All squares are not parallelograms. (e) All kites are rhombuses. (f) All rhombuses are kites. (g) All parallelograms are trapeziums. (h) All squares are trapeziums
NCERT Solutions for Class 8 Maths Chapter 3 Exercise 3.4 Question 1
Summary:
(a) All rectangles are squares - False (b) All rhombuses are parallelograms - True (c) All squares are rhombuses and also rectangles - True (d) All squares are not parallelograms - False (e) All kites are rhombuses - False (f) All rhombuses are kites - True (g) All parallelograms are trapeziums - True (h) All squares are trapeziums - True
☛ Related Questions:
- Identify all the quadrilaterals that have: (a) four sides of equal length (b) four right angles
- Explain how a square is. (i) a quadrilateral (ii) a parallelogram (iii) a rhombus (iv) a rectangle
- Name the quadrilaterals whose diagonals. (i) bisect each other (ii) are perpendicular bisectors of each other (iii) are equal (i) parallelogram, rhombus, rectangle, and square bisect each other. (ii) square and rhombus are perpendicular bisectors of each other. (iii) rectangle and square are equal.
- Explain why a rectangle is a convex quadrilateral.
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