Math Terms

Front

Acute Angle

Back

Less than 90 degrees

Front

Right Angle

Back

Exactly 90 degrees

Front

Obtuse angle

Back

Greater than 90 degrees but less than 180 degrees

Front

Straight Angle

Back

Exactly 180 degrees

Front

Formula for area

Back

Area = length x width

Front

Formula for perimeter

Back

Perimeter = Length + width + length + width

or

side + side + side + side

Front

parallel lines

Back

Never touch - same distance apart

Front

Perpendicular lines

Back

Make a right angle (90 degrees) where they meet

Front

The words "how much more" tell me to.......

Back

subtract

Front

The word "estimate" tells me to ......

Back

round