# ACT WEEK 1

## 25 terms

### Acute

angle measure less than 90

### Average

sum of numbers divided by the number of numbers in a group

### Mean

another word for average

### Binomial

algebraic expression for two terms

### Angle Bisector

ray that is divided by an angle into two congruent angles

### Circumference

distance around a circle

### Chord

line segment connecting two points on a circle

### Supplementary

two angles whose sums is 180 degrees

### Complementary

two angles whose sum is 90 degrees

### Consecutive

one after another, in order, without skipping

### Integers

positive whole numbers, negative whole numbers, nad zero

### Undefined

term used to describe 9/0

### Reciprocal

fraction when you switch the numerator and the denominator

### 180

three angles of a triangle added up

### Similar Triangles

triangles with the same shape but different size

### Square

quadrilateral with 4 right angles and 4 congruent sides

### Rectangle

quadrilateral with 4 right angles only

### Rhombus

quadrilateral with 4 congruent sides only

90 degree angle

180 degree angle

### Obtuse Angle

and angle between 90 and 180 degrees

### Median

the "middle number" of a group of numbers

### Monomial

algebraic expression with one term

### Trinomial

and algebraic expression with three terms