Quadrilaterals Test

Result

Quadrilaterals Test - 4

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following statements is not true?

A
All squares are parallelograms.

B
All trapeziums are parallelograms.

C
All rhombuses are parallelograms.

D
All rectangles are parallelograms.

Solution

A trapezium is a quadrilateral with a pair of opposite sides parallel to each other.
A parallelogram is a quadrilateral with both pairs of opposite sides parallel to each other.

Thus, all parallelograms are trapeziums, but all trapeziums are not parallelograms.
Question 2
1 / -0

In a parallelogram PQRS, ∠^"P = 80^o. Which of the following options represents (∠^"P + ∠^"S)?

A
170^o

B
180^o

C
160^o

D
90^o

Solution

Sum of adjacent angles of a parallelogram is 180°.
And ∠P and ∠S are adjacent angles of a parallelogram.
⇒ ∠P + ∠S = 180°