the diagonals of a rhombus are 15 cm and 36cm long.find its perimeter
Answers
Answered by
8
as we know diagonal of a rhombus bisect each other at 90°
let abcd be a rhombus
diagonals of a rhombus bisect each other at o
in triangle aob
ab^2=ao^2+ob^2
ab^2= (7.5)^2 + (18)^2
ab^2= 56.25 cmsq. + 324cmsq.
ab^2=380.25 cmsq
ab=√380.25 cm sq.
ab= 19.5cm
all sides are equal
therefore
perimeter of rhombus is 19.5*4cm
78.0 cm
let abcd be a rhombus
diagonals of a rhombus bisect each other at o
in triangle aob
ab^2=ao^2+ob^2
ab^2= (7.5)^2 + (18)^2
ab^2= 56.25 cmsq. + 324cmsq.
ab^2=380.25 cmsq
ab=√380.25 cm sq.
ab= 19.5cm
all sides are equal
therefore
perimeter of rhombus is 19.5*4cm
78.0 cm
Similar questions