Geometry and Measurements

What term best defines these lines?

• parallel lines

• straight lines

• perpendicular lines

• intersecting lines

Which angle has exactly 90 degrees?

• acute angle

• right angle

• obtuse angle

• reflex angle

The figures below are rhombuses. Which generalization is NOT CORRECT, based on these figures? (8-6)

• A square can be a rhombus.

• A rhombus can be a square.

• All rhombuses are squares.

• All squares are rhombuses.

These lines are . . .

• parallel

• perpendicular

• obtuse

• acute

Which of these figures cannot describe a square?

• parallelogram

• rectangle

• non-polygon

• rhombus

Name this triangle for its sides and angles.

• obtuse

• acute

• scalene

• equilateral

Name this triangle for its sides and agles.

• acute

• right

• isosceles

• scalene

Name this for its angles and sides.

• obtuse

• actue

• isosceles

• scalene

Name this triangle for its angles and sides.

• obtuse

• acute

• isosceles

• scalene

Quadrilaterals always have

• 4 sides

• 2 sets of parallel lines

• 4 right angles

• 4 equal sides