Question

The diagonals of a rhombus are 10 m and 20 m. Its
area is equal to -
(A) 150 m2
(C) 200 m2
(B) 100 m2
(D) None of these​

Answer 1

Answer:

A = ½ × d1 × d2.

A= 1/2*10*20

A= 100 m^2.

Answer 2

Given :-

• diagonals of the rhombus = 10 m and 20 m

To Find :-

• area of the rhombus ?

Solution :-

we know that,

if the ‘d1’ and ‘d2’ are diagonals of the rhombus then,

$\boxed{ \bold{area \: of \: the \: rhombus = \frac{1}{2} \times d1 \times d2}}$

$\bold{: \implies \frac{1}{ \cancel{2}} \times \cancel{10} \times 20} \\ \\ \bold{: \implies5 \times 20 } \: \: \: \: \: \: \: \: \: \: \: \\ \\ \bold{: \implies 100 \: {m}^{2} } \: \: \: \: \: \: \: \: \:$

so, the area of the rhombus is 100 m²

hence, option (B)100 m² is Correct