Geometry - First Semester Exam

Front

What is the measure of a right angle?

Back

90°

Front

What are parallel lines?

Back

Lines in a plane that never meet and are always the same distance apart.

Front

How do you write an ordered pair?

Back

(X,Y) where X is the horizontal coordinate and Y is the vertical coordinate.

Front

What type of angle is greater than 90° but less than 180°?

Back

Obtuse angle.

Front

What is the sum of the angles in a triangle?

Back

180°.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

What is the formula for the circumference of a circle?

Back

Circumference = 2πr, where r is the radius.

Front

What is the definition of intersecting lines?

Back

Lines that cross each other at one point.

Front

What is the difference between acute and obtuse angles?

Back

Acute angles are less than 90°, while obtuse angles are greater than 90°.

Front

What is the definition of a straight angle?

Back

An angle that measures exactly 180°.