Chapter 9 Warm Up Review

Front

What is the formula for calculating the area of a square?

Back

Area = side × side (or Area = side²)

Front

How do you calculate the area of a triangle?

Back

Area = 1/2 × base × height

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

How do you find the value of x in a linear equation?

Back

Isolate x by performing inverse operations on both sides of the equation.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width

Front

How do you convert a decimal to a percentage?

Back

Multiply the decimal by 100 and add a percent sign.

Front

What is the definition of an adjacent side in a triangle?

Back

An adjacent side is the side next to a given angle.

Front

What is the formula for the area of a circle?

Back

Area = π × radius²

Front

How do you round a number to the nearest hundredth?

Back

Look at the third decimal place; if it's 5 or more, round up.

Front

What is the definition of a right triangle?

Back

A triangle with one angle measuring 90 degrees.