Vocabulary
Percent
Over 100 or %
of
X
b x h
area of a rectangle
right triangle
see illustration
8 + b = 21
b = 13
Improper fraction
top is bigger than bottom
is
=
b x h/2
area of a triangle
acute angle
angle smaller than 90 degrees
24 x c = 48
c = 2
Pie
3.14
Product
X
3.14 x d
circumference
line
see illlustration
a - 23 = 15
a = 38
Mixed number
2 3/4
Sum
+
3.14 x r2
area of a circle
ray
see illustration
a + b = c
a = 2
b = 4.5
c = 6.5
Reciprocal
1/8 8/1
Each
multiplication or division
b x h x w
volume
parallelogram
four sided figure with 2 sets of parallel sides
ab / 2 = c
a = 6
b = 7
c = 21