Unit 6 Vocabulary

1. the ratio of a circle’s circumference to the diameter (π ≈ 3.14)

• Radius

• Pi

• Volume

• Pythagorean Theorem

1.  the distance from the side of a circle to the center point. The radius of a sphere is the distance from the center to any point on the surface

• Radius

• Pi

• Volume

• Pythagorean Theorem

1. the distance between opposite vertices in a rectangle or a rectangular prism

• Diagonal

• Slant Height

• Volume

• Pythagorean Theorem

1.  the distance along the surface of a right circular cone from the edge of the base to the vertex 

• Altitude of a Triangle

• Slant Height

• Volume

• Pythagorean Theorem

1. the distance between the two bases; or the distance between the base and apex at a right angle 

• Altitude of a Triangle

• Slant Height

• Volume

• Height of a Solid

1.  side of a right triangle opposite of the 90 degree angle; always the longest side; labeled as side ‘c’.

• Altitude of a Triangle

• Legs of a Triangle

• Hypotenuse

• Height of a Solid

1.  the two shorter sides of a right triangle, side ‘a’ and side ‘b’, which intersect to form a right angle opposite of the hypotenuse

• Altitude of a Triangle

• Legs of a Triangle

• Hypotenuse

• Height of a Solid

1.  the square of the hypotenuse in a right triangle is equal to the sum of the squares of the legs (a2 + b2 = c2)

• Pythagorean Theorem

• Legs of a Triangle

• Hypotenuse

• Pythagorean Theorem Converse

1. allows you to find the length of any side of a right triangle if you know the lengths of the other two sides

• Pythagorean Theorem

• Legs of a Triangle

• Hypotenuse

• Pythagorean Theorem Converse

1. a triangle with one angle that is exactly 90 degrees

• Cone

• Legs of a Triangle

• Cylinder

• Right Triangle