Explain how a square is. - a quadrilateral
- a parallelogram
- a rhombus
- a rectangle
- a quadrilateral
- a parallelogram
- a rhombus
- a rectangle
Solution and Explanation
(i) A square is a quadrilateral since it has four sides.
(ii) A square is a parallelogram since its opposite sides are parallel to each other.
(iii) A square is a rhombus since its four sides are of the same length.
(iv) A square is a rectangle since each interior angle measures \(90°\).
Top Questions on Some Special Parallelograms
- \(ABC\) is a right-angled triangle and \(O\) is the mid point of the side opposite to the right angle. Explain why \(O\) is equidistant from \(A, B\) and \(C\). (The dotted lines are drawn additionally to help you).
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- State whether True or False.
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- All rhombuses are parallelograms.
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- All kites are rhombuses.
- All rhombuses are kites.
- All parallelograms are trapeziums.
- All squares are trapeziums.
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Questions Asked in CBSE Class VIII exam
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Fill in the blanks in the sentences below (the verbs given in brackets will give you a clue).
(i) The earth trembled, but not many people felt the ____. (tremble)
(ii) When the zoo was flooded, there was a lot of _____ and many animals escaped into the countryside. (confuse)
(iii) We heard with _____ that the lion had been recaptured. (relieve)
(iv) The zookeeper was stuck in a tree and his _____ was filmed by the TV crew. (rescue)
(v) There was much _____ in the village when the snake charmer came visiting. (excite)
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- Fill in the blanks with suitable words.
- Time taken by an object to complete one oscillation is called ___ .
- Loudness is determined by the ___ of vibration.
- The unit of frequency is ___.
- Unwanted sound is called __________ .
- Shrillness of a sound is determined by the ___ of vibration.
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