Math Chapter 15 Vocab

equilateral triangle

• 3 sides of equal length

• 2 sides of equal length

• 3 different side lengths

2 sides of equal length triangle

• equilateral triangle

• isosceles triangle

• scalene triangle

• triangle

a triangle is ________ and ______ because it has 2 sides of equal length. (two correct answers)

• triangle

• right

• isosceles

• scalene

two pairs of parallel sides and opposite sides of the same length

• rectangle

• square

• trapezoid

• parallelogram

Match the following

• rhombus

• 2 pairs of parallel sides and 4 sides of same length

• rectangle

• 2 pairs of parallel sides, 4 right angles and opposite sides of the same length

• trapezoid

• at least 1 pair of parallel sides

a right triangle has one __ degree angle

a rhombus is _____ a parallelogram.

• sometimes

• always

• never

• usually

a rhombus is _____ a square.

• sometimes

• never

• always

• right

a square is ____ a rhombus

• sometimes

• never

• usually

• always

TRUE OR FALSE:

If a figure is a square, then it is a regular quadrilateral?

• TRUE

• FALSE