12 terms

Pythagorean Theorem 7

perfect square
a square of a whole number
square root
one of the two equal factors of a number
radical sign
the symbol for square root.
scalene triangle
a triangle with no congruent sides
isosceles triangle
a triangle with at least two congruent sides
equilateral triangle
a triangle with three congruent sides
acute triangle
a triangle with all its angles measuring less than 90 degrees
obtuse triangle
an angle whose measure is greater than 90 degrees but less than 180 degrees
right triangle
a triangle containing a right angle
in a right triangle, the sides that include the right angle; in an isosceles triangle, the pair of congruent sides
in a right triangle, the side opposite the right angle
Pythogorean Theorem
in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs