Area, Perimeter and Decimals Review

Front

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

Back

Area = length × width.

Front

How do you calculate the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width).

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height.

Front

How do you calculate the perimeter of a parallelogram?

Back

Perimeter = 2 × (base + side length).

Front

What is the area of a triangle?

Back

Area = 1/2 × base × height.

Front

How do you convert a decimal to a fraction?

Back

Divide the decimal by 1 and multiply the numerator and denominator by 10 for each digit after the decimal.

Front

What is the decimal equivalent of 3/4?

Back

0.75.

Front

How do you multiply two decimals?

Back

Multiply as if they are whole numbers, then count the total number of decimal places in both numbers and place the decimal in the product.

Front

What is the area of a circle?

Back

Area = π × radius².

Front

How do you find the circumference of a circle?

Back

Circumference = 2 × π × radius.