# SAT Prep Math v2

## 74 terms · Math formulas and facts

2πr

πr^2

### 4s

Perimeter of a square

Area of a square

### 2(l+w)

Perimeter of a rectangle

### lw

Area of a rectangle

### 1/2bh

Area of a triangle

(πr2)h

Area of a cube

### lwh

Volume of a rectangular prism

### a^2+b^2=c^2

Pythagorean Theorem

### 3 4 5

Pythagorean Triples

### x, x, (2)

Special Right Triangles 45° 45°

### (3), x, 2x

Special Right Triangles 30° 60°

### 180

The sum of the measures in degrees of the angles of a triangle

### 180

The number of degrees of a straight angle

### 360

The number of degrees of the arcs in a circle

(a+b)²

(a-b)²

### .1

1/10 into decimal

1/5 into decimal

1/4 into decimal

### .3

3/10 into decimal

1/3 into decimal

2/5 into decimal

1/2 into decimal

3/5 into decimal

2/3 into decimal

### .7

7/10 into decimal

3/4 into decimal

4/5 into decimal

### .9

9/10 into decimal

### 10%

1/10 into percent

1/5 into percent

1/4 into percent

### 30%

3/10 into percent

1/3 into percent

2/5 into percent

1/2 into percent

3/5 into percent

2/3 into percent

### 70%

7/10 into percent

3/4 into percent

4/5 into percent

### 90%

9/10 into percent

10²

11²

12²

13²

14²

15²

16²

17²

18²

19²

20²

### Distance Formula

d = √[( x₂ - x₁)² + (y₂ - y₁)²]

### Midpoint Formula

(x₁+x₂/2, y₁+y₂/2)

### Slope Formula

m=y₂-y₁/x₂-x₁

When multiplying exponential expressions and thee bases are the same, you

### subtract the exponents

When dividing exponential expressions and the bases are the same, you

### multiply the exponents

When raising a monomial exponential expression to a power, you

### cross the line and change the sign

When simplifying expressions with negative exponents,

### 1

Anything raised to the 0 power is