Monday

July 28, 2014

July 28, 2014

Posted by **jennie cribzon** on Monday, May 21, 2012 at 9:47pm.

- maths -
**Jai**, Monday, May 21, 2012 at 10:27pmrecall these properties:

-all sides of rhombus are equal.

-the diagonals of rhombus are perpendicular (forms four 90 degree angles)

-area of rhombus, if diagonals are given, can be calculated by

A = d1 * d2 /2

where d1 & d2 are the diagonal lengths

-side of a rhombus, if diagonals are given, can be calculated by

s = sqrt(d1^2 + d2^2)

*note that this is just pythagorean theorem

applying these,

A = 24*18/2

A = 216 m^2

s = sqrt(24^2 + 18^2)

s = sqrt(900)

s = 30 m

P = 4*s

P = 4*30

P = 120 m

hope this helps~ :)

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