Angles of an Isosceles Triangle

Hard Geometry Triangles

Triangle JKL is an isosceles triangle where sides JK and JL are equal in length. The length of side JK is 10 cm, and the length of side KL is 16 cm. Calculate the measure of the angles at points J and K.

Remember that in any triangle, the sum of the interior angles equals $180^{\circ}$. You can use the properties of isosceles triangles to help you find the measures.

Each angle at J and K measures $70^{\circ}$.

Each angle at J and K measures $80^{\circ}$.

Each angle at J and K measures $85^{\circ}$.

Each angle at J and K measures $50^{\circ}$.

Hint

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