Math 4 Today ~ Week 17 ~ Day 4

Front

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

Back

Area = Length x Width

Front

If the area of a rectangle is 1,035 square centimeters and the length is 3 centimeters, what is the width?

Back

Width = Area / Length = 1,035 cm² / 3 cm = 345 cm

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Front

Is the number 75 a prime number?

Back

No, 75 is not a prime number because it can be divided by 1, 3, 5, 15, 25, and 75.

Front

What is the area of a rectangle with a length of 5 cm and a width of 4 cm?

Back

Area = 5 cm x 4 cm = 20 cm²

Front

If a rectangle has an area of 50 cm² and a width of 5 cm, what is the length?

Back

Length = Area / Width = 50 cm² / 5 cm = 10 cm

Front

What does it mean if a number is composite?

Back

A composite number is a natural number greater than 1 that is not prime, meaning it has more than two positive divisors.

Front

Give an example of a prime number.

Back

2, 3, 5, 7, 11, etc.

Front

What is the area of a rectangle with a length of 10 cm and a width of 2 cm?

Back

Area = 10 cm x 2 cm = 20 cm²

Front

If the area of a rectangle is 100 cm² and the length is 10 cm, what is the width?

Back

Width = Area / Length = 100 cm² / 10 cm = 10 cm