Finding + Combining Area (3rd Grade)

Front

What is area?

Back

Area is the amount of space inside a shape, measured in square units.

Front

How do you find the area of a rectangle?

Back

Multiply the length by the width: Area = Length × Width.

Front

What is the area of a rectangle with a length of 5 units and a width of 3 units?

Back

Area = 5 × 3 = 15 square units.

Front

If a square has a side length of 4 units, what is its area?

Back

Area = 4 × 4 = 16 square units.

Front

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

Back

Area = (Base × Height) ÷ 2.

Front

What is the area of a triangle with a base of 6 units and a height of 4 units?

Back

Area = (6 × 4) ÷ 2 = 12 square units.

Front

How do you combine the areas of two shapes?

Back

Add the areas of the individual shapes together.

Front

If one rectangle has an area of 10 square units and another has an area of 15 square units, what is the total area?

Back

Total Area = 10 + 15 = 25 square units.

Front

What is a square unit?

Back

A square unit is a unit of measure for area, representing a square that is 1 unit on each side.

Front

What is the area of a figure with 20 square units?

Back

The area is simply 20 square units.