Friday

December 19, 2014

December 19, 2014

Posted by **Aria** on Tuesday, March 29, 2011 at 10:30pm.

- geometry -
**Jai**, Tuesday, March 29, 2011 at 10:59pmrecall that the area of rhombus is just

A = b*h

where b = base and h = height

we already have the base, which is 5 cm. we need to find for the height,, to get this, observe that if we draw the rhombus and draw a broken line representing the height, we see that a right triangle is form, particularly, a 30-60-90 triangle

to get height,

5 * sin 60 = 4.33 cm

**note that we use sin 60 here because 80 degrees is the opposite angle of the height

substituting:

A = b*h

A = 5*(4.33)

A = 21.65 sq cm

hope this helps~ :)

**Answer this Question**

**Related Questions**

geometry - what is the area of a rhombus with a 60 degree angle and sides 5 cm ...

Geometry - What is the area of a rhombus with a 60 degree angle and sides 5 cm ...

Geometry - Find the area of a rhombus with a 45 degree angle and sides of 12m ...

geometry - A sign is in the shape of a rhombus with a 60° angle and sides of 9 ...

geometry - A sign is in the shape of a rhombus with a 60° angle and sides of 2 ...

geometry - A sign is in the shape of a rhombus with a 60° angle and sides of 2 ...

High Point - a sign is in the shape of rhombus with a 60 degree angle and sides...

geometry - The sides of a rhombus with angle of 60° are 6 inches. Find the area ...

Geometry - Two sides of a rhombus form a 120º angle. The length of each side is ...

Geometry - Two sides of a rhombus form a 120º angle. The length of each side is ...