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**Estimated Time Needed**

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Geometry Problems: Circles and Triangles

Academic

Vocabulary

Vocabulary

Two rays sharing a common endpoint.

The amount of space taken up in a plane by a geometric figure.

A closed plane curve consisting of all points at a given distance from a point within it called the center.

Exactly equal in size and shape.

A statement, usually an equation, of a fact, principle, rule, or other logical relationship; often used to solve a problem.

The relationship between the three sides of a right triangle which states that the square of the longest side (the hypotenuse) is equal to the sum of the squares of the other two sides. The Pythagorean equation looks like this

A line segment that joins the center of a shape with any point on its circumference; the length of such a segment.

The relationship between two things

Triangle having one right angle (90ยบ).

When two triangles have corresponding angles that are congruent.

A proposition (or problem) that has been proven, or is to be proven, using explicit assumptions.

A polygon with three sides and three angles.