Geometry and Shapes

What do the following triangles have in common?

• Both triangles are equilateral.

• Both triangles have all acute angles.

• Both triangles are scalene.

• Both triangles are obtuse.

Name the following triangle by its sides and angles.

• Obtuse, scalene triangle

• Acute, isosceles triangle

• Right, isosceles triangle

• Right, scalene triangle

Name the following triangle by its angles.

• scalene triangle

• right triangle

• obtuse triangle

• acute triangle

Which of the following do squares and rectangles have in common?

• two lines of symmetry

• all congruent sides

• four lines of symmetry

• all right angles

What is the measure of angle A?

• 125 degrees

• 145 degrees

• 55 degrees

• 45 degrees

What is the measure of angle A?

• 30 degrees

• 50 degrees

• 90 degrees

• 40 degrees

What is the measure for A?

• 25 degrees

• 65 degrees

• 15 degrees

• 75 degrees

Which of the following is NOT a name for the figure?

• quadrilateral

• trapezoid

• parallelogram

• polygon

How many total vertices are in all these figures?

• 20

• 21

• 14

• 18

Which statement describes all these figures?

• The figures are all triangles.

• The figures are all quadrilaterals.

• The figures are all polygons.

• The figures are all three-dimensional.