Area of plane figures, sectors, composite figures

Front

What is the area of a rectangle?

Back

The area of a rectangle is calculated by multiplying its length by its width. Formula: Area = Length × Width.

Front

How do you find the area of a triangle?

Back

The area of a triangle is found using the formula: Area = 1/2 × Base × Height.

Front

What is a composite figure?

Back

A composite figure 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 circle?

Back

The area of a circle is calculated using the formula: Area = π × Radius².

Front

What is a sector of a circle?

Back

A sector is a portion of a circle enclosed by two radii and the arc between them.

Front

How do you find the area of a sector?

Back

The area of a sector can be calculated using the formula: Area = (θ/360) × π × Radius², where θ is the angle in degrees.

Front

What is the formula for the perimeter of a rectangle?

Back

The perimeter of a rectangle is calculated by adding the lengths of all sides: Perimeter = 2 × (Length + Width).

Front

How do you find the area of a trapezoid?

Back

The area of a trapezoid is calculated using the formula: Area = 1/2 × (Base1 + Base2) × Height.

Front

What is the height of a figure?

Back

The height of a figure is the perpendicular distance from the base to the topmost point.

Front

What does it mean to round to the hundredths place?

Back

Rounding to the hundredths place means to round a number to two decimal places.