Semester Test Review Part 2

Front

What is the formula to calculate the area of a rectangle?

Back

Area = length × width.

Front

If the temperature decreases by 3.5 degrees each hour, how do you calculate the temperature after several hours?

Back

Subtract the product of the decrease per hour and the number of hours from the initial temperature.

Front

What does it mean for two triangles to be similar?

Back

Two triangles are similar if their corresponding angles are equal and their corresponding sides are in proportion.

Front

How do you find the total area of multiple rectangles?

Back

Add the area of each rectangle together.

Front

What is the area of a rectangle with a length of 14.5 feet and a width of 8 feet?

Back

Area = 14.5 ft × 8 ft = 116 ft².

Front

How do you calculate the total revenue from selling items?

Back

Total Revenue = (Number of items sold) × (Price per item).

Front

If 1/3 of the total bags sold were chocolate covered popcorn, how do you find the number of bags sold?

Back

Total bags sold = 300; Chocolate covered bags = 1/3 × 300 = 100 bags.

Front

What is the formula for finding the area of a circle?

Back

Area = π × radius².

Front

How do you calculate the temperature at a specific time if it decreases over hours?

Back

Use the formula: Final Temperature = Initial Temperature - (decrease per hour × number of hours).

Front

What is the significance of similar triangles in geometry?

Back

They allow for the use of proportional reasoning to find unknown side lengths.