Area of Polygons

Front

What is the formula for the area of a rectangle?

Back

Area = length × width

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height

Front

What is the formula for the area of a trapezoid?

Back

Area = 1/2 × (base1 + base2) × height

Front

How do you find the area of a polygon?

Back

Divide the polygon into simpler shapes (like triangles and rectangles), find their areas, and sum them up.

Front

What is the area of a right triangle with a base of 10 in and a height of 8 in?

Back

Area = 1/2 × 10 × 8 = 40 in²

Front

If the length of a rectangle is 5 in and the width is 3 in, what is its area?

Back

Area = 5 × 3 = 15 in²

Front

What is the area of a trapezoid with bases of 6 in and 10 in, and a height of 4 in?

Back

Area = 1/2 × (6 + 10) × 4 = 32 in²

Front

What does it mean to 'multiply the total area'?

Back

It means to take the area calculated and increase it by a certain factor.

Front

If the area of a pool is 50 in² and you multiply it by 2, what is the new area?

Back

New area = 50 × 2 = 100 in²

Front

What is the area of a square with a side length of 4 in?

Back

Area = side × side = 4 × 4 = 16 in²