ACT Math Vocabulary Review

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

• two angles that add up to 180˚

• obtuse

• an angle that measures less than 90˚

• right

• an angle that measures exactly 90˚

• complementary

• two angles that add up to 90˚

• supplementary

• an angle that measures greater than 90˚

• acute

Tags

CCSS.7.G.B.5

Area of triangle ​​ (a)  

Area of rectangle ​ (b)  

Area of trapezoid ​ (c)  

Tags

CCSS.6.G.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.4.G.A.2

The average of a group of numbers is also called the (a)   of the numbers.

Tags

CCSS.6.SP.B.5C

If two lines intersect to form right angles, the lines are (a)   to each other.

Tags

CCSS.HSG.CO.A.1

What is the longest side of a right triangle called?

(a)  

Tags

CCSS.HSG.SRT.C.8

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

• -1/2

• 4/5

• 0

• 5/4

• -2/3

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B

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

• 2

• 8

• -5

• 0

• -3

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B

Match the following

• product

• if two numbers are added together

• difference

• if two numbers are multiplied

• sum

• if two numbers are divided

• quotient

• if two numbers are subtracted

Tags

CCSS.3.OA.D.9

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

• additive inverse

• opposite

• absolute value

• reflection

Tags

CCSS.7.NS.A.1B