ACT Math Vocabulary Review

Each of these words describes something about angles. Match the word to its definition.

• an angle that measures less than 90˚

• obtuse

• two angles that add up to 180˚

• supplementary

• an angle that measures exactly 90˚

• acute

• an angle that measures greater than 90˚

• complementary

• two angles that add up to 90˚

• right

Tags

CCSS.HSG.CO.A.1

Area of triangle ​​ (a)  

Area of rectangle ​ (b)  

Area of trapezoid ​ (c)  

Tags

CCSS.HSG.GMD.A.1

The picture shows three types of triangles based. Label which is which.

a

b

c

isosceles triangle

scalene triangle

equilateral triangle

Tags

CCSS.5.G.B.4

The average of a group of numbers is also called the ________ of the numbers.

Tags

CCSS.HSS.MD.A.2

If two lines intersect to form right angles, the lines are ________ to each other.

Tags

CCSS.HSG.CO.A.1

CCSS.HSG.GPE.B.5

What is the longest side of a right triangle called?

Tags

CCSS.HSG.SRT.C.8

Put the numbers in order from smallest to largest (ascending) order.

• -1/2

• 4/5

• -2/3

• 0

• 5/4

Tags

CCSS.6.NS.C.5

CCSS.6.NS.C.6

CCSS.6.NS.C.7

Put the numbers in order from largest to smallest (descending) order.

• -3

• -5

• 0

• 8

• 2

Tags

CCSS.6.NS.C.5

CCSS.6.NS.C.7

Match the following

• sum

• if two numbers are subtracted

• quotient

• if two numbers are multiplied

• product

• if two numbers are divided

• difference

• if two numbers are added together

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.APR.D.7

The distance of a number from the origin is called what?

• additive inverse

• opposite

• absolute value

• reflection