Question

please solve my question

Answer 1

a) ——> 9 cm
b) ——>
c) 4×length of side

Answer 2

Answer:

a) we know that area of rombus = product of its diagonals ÷2

so,

area=216cm²

therefore,

216=24×other diagonal÷2

other diagonal=216×2÷24

=18cm

b) we know that the diagonal bisect each other at 90 degree

so,

by pythagoras theorem ,

(12)²+(9)²=(side)²

144+81=(side)²

225=(side)²

side = 15cm

c) perimeter of rhombus=4×side

4×15=60cm