Quadrilaterals Test

Result

Quadrilaterals Test - 4

Score
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Weekly Quiz Competition

Question 1
1 / -0

Two adjacent angles of a parallelogram are in the ratio 4 : 5. The angles are

A
180°, 180°

B
36°, 144°

C
80°, 100°

D
none of these

Solution

The adjacent angles of the parallelogram are in the ratio 4 : 5

4x + 5x = 180^o (Sum of adjacent angles of parallelogram)

9x = 180^o

x = 20^o

Angles are 4x = 80^o and 5x = 100^o
Question 2
1 / -0

In a parallelogram ABCD, diagonals AC and BD intersect at O. If AO = 7 cm, then AC =

A
5 cm

B
20 cm

C
14 cm

D
none of these

Solution

In a parallelogram ABCD, diagonals AC and BD intersect at O. If AO = 7 cm, then AC = 14 cm because the diagonals of parallelogram bisect each other.