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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 350.5 sq cm. One of its diagonals is 25.5 cm. Find the length of the other diagonal.
27.49 cm
18.25 cm
26.46 cm
19.23 cm

Q 2: The area of a rhombus is 90 sq cm. One of its diagonals is 10 cm. Find the length of the other diagonal.
19 cm
18 cm
16 cm
15 cm

Q 3: 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
10 cm and 12 cm respectively
2 cm and 5 cm respectively
6 cm and 8 cm respectively

Q 4: The area of a rhombus is 150 sq cm. One of its diagonals is 12 cm. Find the length of the other diagonal.
15 cm
20 cm
23 cm
25 cm

Q 5: The area of a rhombus is 196 sq cm. One of its diagonals is two times the other. Find the lengths of the diagonals.
12 cm and 24 cm respectively
11 cm and 22 cm respectively
13cm and 26 cm respectively
14 cm and 28 cm respectively

Q 6: 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
23x units
22x units

Question 7: This question is available to subscribers only!

Question 8: This question is available to subscribers only!


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