# Geometry

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Find the area of the rhombus: In rhombus ABCD, AB=11 and AC=13. Find the area of the rhombus.

What should be done to find the values of the diagonals?

• Geometry -

For a rhombus (equal sides), AB = BC.
AC is already one diagonal that you know. The other is
BD = 2*sqrt(11^2 -6.5^2) = 17.75
The area is half the product of the diagonals.

• Geometry -

What does 2*sqrt mean?

• Geometry -

2 times the square root of( )

• Geometry -

In rhombus ABCD, AB=20 and AC=25. Find the area of the rhombus to the nearest tenth.

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