Question

solve the question pls

Answer 1

Answer:

15cm

Step-by-step explanation:

let N be the unknown diagonal

area of rhombus = product of diagonals

                  240 cm^2          =16cm x N

               N=240/16 cm

               N=15cm

Answer 2

(a)  given :- (i) area of rhombus = 240 cm sq.

            (ii) $d_{1}$ = 16 cm

we know that

area of rhombus =  $d_{1}$ x  $d_{2}$ /2

                     240 =  16 x $d_{2}$ /2

                     240 =  8 x $d_{2}$

    $d_{2}$ =  240/8

    $d_{2}$ = 30 cm

(b) given :- (i)  $d_{1}$ = 7.5 cm

                 (ii) $d_{2}$ = 12cm

we know that

area of rhombus =  $d_{1}$ x  $d_{2}$ /2

                            = 7.5 x 12

                            = 45 cm sq.

hope it helps.....