make easy cards of rate, ratio, area and periemeter Flashcards
What is the definition of a rate?
A rate is a ratio that compares two different quantities with different units, often expressed as a fraction.
True or False: A ratio can only compare two quantities.
True
Fill in the blank: The area of a rectangle is calculated by multiplying the length by the _____
width
What is the formula for the perimeter of a rectangle?
Perimeter = 2(length + width)
If a car travels 300 miles in 5 hours, what is the rate of speed?
60 miles per hour
What is a ratio of 3 to 4 expressed as a fraction?
3/4
True or False: The area of a triangle is calculated as (base x height) / 2.
True
What is the perimeter of a square with a side length of 5 units?
20 units
Fill in the blank: The ratio of boys to girls in a class is 2:3. If there are 10 boys, there are _____ girls.
15
What is the area of a circle with a radius of 7 units?
154 square units (using π ≈ 3.14)
Which is larger: a ratio of 1:2 or a ratio of 3:5?
A ratio of 3:5 is larger.
What is the formula for calculating the area of a rectangle?
Area = length x width
True or False: The perimeter of a circle is called the circumference.
True
If a recipe calls for a ratio of 2 cups of flour to 1 cup of sugar, how much sugar is needed for 8 cups of flour?
4 cups of sugar
What is the perimeter of a triangle with sides measuring 3, 4, and 5 units?
12 units
Fill in the blank: The rate of a job is typically expressed in _____ per hour.
dollars
What is the area of a square with a side length of 6 units?
36 square units
If the ratio of cats to dogs in a shelter is 5:2, how many dogs are there if there are 25 cats?
10 dogs
True or False: A rate can be simplified like a fraction.
True
What is the formula for the area of a triangle?
Area = (base x height) / 2
What is the circumference of a circle with a diameter of 10 units?
31.4 units (using π ≈ 3.14)
Fill in the blank: The ratio of 4:5 can also be expressed as 4 _____ 5.
to
What is the perimeter of a rectangle that is 8 units long and 3 units wide?
22 units
If a train travels 120 miles in 2 hours, what is its speed in miles per hour?
60 miles per hour
What is the area of a rectangle with a length of 10 units and a width of 4 units?
40 square units
