Question

The diagonals of
a rhombus are 7.5cm and 12cm find its area​

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

.

Answer 2

Answer:

Area of a rhombus = ½ × d1 × d2

$\frac{1}{2}$ × 7.5 × 12

$\frac{1}{2}$ × $\frac{75}{10}$ × 12

$\frac{75}{10}$ × 6

$\frac{450}{10}$  $cm^{2}$

45 $cm^{2}$

∴ Area of a rhombus = 45 $cm^{2}$