All ISEE Upper Level Math Resources
Example Question #1 : How To Find An Angle In A Rhombus
Consider the rhombus below. Solve for .
The total sum of the interior angles of a quadrilateral is degrees. In this problem, we are only considering half of the interior angles:
Example Question #2 : How To Find An Angle In A Rhombus
Note: Figure NOT drawn to scale.
The above depicts a rhombus and one of its diagonals. What is ?
The diagonals of a rhombus bisect the angles.
The angle bisected must be supplementary to the angle since they are consecutive angles of a parallelogram; therefore, that angle has measure , and is half that, or .