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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 7 - Mathematics
9.32 Area of Rhombus - II

Example:
The area of a rhombus is 150 sq cm. One of its diagonals is 15 cm. Find the length of the other diagonal.

Solution:
The area of a rhombus (A) = 1/2 * d1 * d2.
Given that,
A = 150 sq cm. and d1 = 15 cm.
Hence d2 = 2A/d1
= (2*150)/15
= 20 cm.
Therefore, the length of other diagonal = 20 cm.


Directions: Read the above example carefully and answer the following questions. Also write at least 10 examples of your own.
Q 1: The area of a rhombus is 169x2 sq units. One of its diagonals is 13x units. Find the length of the other diagonal.
26x units
26x units
22x units
23x units

Q 2: The area of a rhombus is 27 sq cm. One of its diagonals is two more than the other. Find the lengths of the diagonals.
9 cm and 11 cm respectively
2 cm and 5 cm respectively
10 cm and 12 cm respectively
6 cm and 8 cm respectively

Q 3: The area of a rhombus is (500/2) sq cm. One of its diagonals is (320/16) cm. Find the length of the other diagonal.
15 cm
16 cm
25 cm
19 cm

Q 4: The area of a rhombus is 768 sq cm. One of its diagonals is 6 times the other. Find the lengths of the diagonals.
11 cm and 66 cm respectively
9 cm and 54 cm respectively
10 cm and 60 cm respectively
16 cm and 96 cm respectively

Q 5: The area of a rhombus is 350.5 sq cm. One of its diagonals is 25.5 cm. Find the length of the other diagonal.
27.49 cm
19.23 cm
18.25 cm
26.46 cm

Q 6: The area of a rhombus is 90 sq cm. One of its diagonals is 10 cm. Find the length of the other diagonal.
16 cm
18 cm
15 cm
19 cm

Question 7: This question is available to subscribers only!

Question 8: This question is available to subscribers only!


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