Question

A rhombus has a side of 12 and the measure of one angle is 150 degrees. What is its area?

Answer 1

Here is an important but simple area formula to use for a rhombus :

`A=s^2sina`

Explanation:

Let s = length of a side of the rhombus
Let a = any interior angle

For this problem:

`s=12`
`a=150^o`

Area `=(12^2)sin(150^o)=144xx1/2=72`

hope that helped