Day 35 - Finding Perimeter of composite figures

Front

What is the definition of perimeter?

Back

Perimeter is the total distance around the outside of a polygon, calculated by adding the lengths of all its sides.

Front

How do you find the perimeter of a rectangle?

Back

To find the perimeter of a rectangle, use the formula P = 2(length + width).

Front

What is the formula for the perimeter of a triangle?

Back

The perimeter of a triangle is found by adding the lengths of all three sides: P = side1 + side2 + side3.

Front

What is a composite figure?

Back

A composite figure is a shape that is made up of two or more simple geometric shapes.

Front

How do you calculate the perimeter of a composite figure?

Back

To calculate the perimeter of a composite figure, find the perimeter of each individual shape and then sum them up, ensuring to account for any shared sides.

Front

What is the perimeter of a square with a side length of 5 cm?

Back

The perimeter of a square is calculated using the formula P = 4 * side. Therefore, P = 4 * 5 cm = 20 cm.

Front

If a composite figure consists of a rectangle and a triangle, how do you find the total perimeter?

Back

Calculate the perimeter of the rectangle and the triangle separately, then add them together, subtracting any shared sides.

Front

What is the perimeter of a circle called?

Back

The perimeter of a circle is called the circumference.

Front

What is the formula for the circumference of a circle?

Back

The circumference of a circle is calculated using the formula C = 2πr, where r is the radius.

Front

How do you find the missing side length if the perimeter is known?

Back

If the perimeter is known, you can find a missing side length by rearranging the perimeter formula to solve for the unknown side.