Applied Math - Geometry - Flashcard 2 - "Area"

Front

What is the formula for the area of a rectangle?

Back

The area of a rectangle is calculated using the formula: Area = length × width.

Front

How do you find the area of a triangle?

Back

The area of a triangle is calculated using the formula: Area = (base × height) / 2.

Front

What is the formula for the area of a circle?

Back

The area of a circle is calculated using the formula: Area = π × radius².

Front

What is a compound shape?

Back

A compound shape is a shape that is made up of two or more simple shapes, such as rectangles, triangles, and circles.

Front

How do you calculate the area of a compound shape?

Back

To calculate the area of a compound shape, find the area of each simple shape and then sum them up.

Front

What is the significance of units in area measurement?

Back

Units in area measurement indicate the size of the surface. Common units include square inches (in²), square feet (ft²), and square meters (m²).

Front

How do you round numbers in area calculations?

Back

When rounding numbers in area calculations, follow standard rounding rules: if the digit after the rounding place is 5 or more, round up; if it's less than 5, round down.

Front

What is the area of a rectangle measuring 25 ft by 30 ft?

Back

Area = length × width = 25 ft × 30 ft = 750 sq ft.

Front

If a triangle has a base of 10 cm and a height of 5 cm, what is its area?

Back

Area = (base × height) / 2 = (10 cm × 5 cm) / 2 = 25 cm².

Front

What is the area of a circle with a radius of 7 yd?

Back

Area = π × radius² = 3.14 × (7 yd)² = 153.86 yd².