Question

If the diagonal of a rhombus are 21 cm and 8.5 cm then its area will be?​

Answer 1

Answer:

Let d

1

and d

2

be the two diagonals of a rhombus.

Then, d

1

=7.5 cm and d

2

=12 cm

We know that,

Area of Rhombus =

2

d

1

d

2

=

2

(7.5)(12)

=45cm

2

Hence, the answer is 45cm

2

.

Step-by-step explanation:

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Answer 2

Answer:

Area = 89.25 cm²

Step-by-step explanation:

Area of a rhombus= p×q÷2   (p and q are the diagonals)

   ⇒ area = 21×8.5÷2

⇒ 1785÷20

⇒89.25cm²