Question

Perimeter of rhombus PQRS is 68.If PR=30, then find QS.​

Answer 1

Answer:

Each side of a rhombus= 17 cm

Diagonals of a rhombus bisect at 90 degrees

so u can take pythagoras theorem

using the diagram which u have

17^2=15^2+x^2

x^2=17^2-15^2

x^2=289-225=64

x= root of 64 = 8cm

we know that diagonals act as a median for the base

so 2*8=16cm

QS=16 cm