Unit 6 Test Day Bell Ringer

Front

What is the Pythagorean theorem?

Back

The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (c) is equal to the sum of the squares of the lengths of the other two sides (a and b). Formula: c² = a² + b².

Front

How do you calculate the area of a rectangle?

Back

Area = length × width.

Front

What is the formula for calculating the volume of a rectangular prism?

Back

Volume = length × width × height.

Front

What is the definition of BTU (British Thermal Unit)?

Back

A BTU is a unit of heat energy that is required to raise the temperature of one pound of water by one degree Fahrenheit.

Front

How do you calculate the monthly payment on a loan?

Back

Monthly Payment = [P * r(1 + r)^n] / [(1 + r)^n - 1], where P = principal, r = monthly interest rate, n = number of payments.

Front

What is the formula for compound interest?

Back

A = P(1 + r/n)^(nt), where A = the amount of money accumulated after n years, P = principal amount, r = annual interest rate, n = number of times interest applied per time period, t = number of time periods.

Front

How do you calculate the percentage increase?

Back

Percentage Increase = [(New Value - Old Value) / Old Value] × 100.

Front

What is the relationship between the height of an object and the length of its shadow?

Back

The height of an object and the length of its shadow are proportional, which can be expressed using similar triangles.

Front

What is the formula for calculating the slope of a line?

Back

Slope (m) = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are two points on the line.

Front

How do you find the height of a building using similar triangles?

Back

Height of the building = (Height of the pole / Length of the pole's shadow) × Length of the building's shadow.