Understanding Area and Perimeter of Triangles

What is the perimeter of a shape?

• The area covered by the shape

• The distance around the shape

• The length of one side of the shape

• The volume of the shape

How do you calculate the area of a triangle?

• Side plus side plus side

• Length times width

• Base times height

• Base times height divided by 2

What formula can be used to find the area of a triangle?

• Perimeter divided by 3

• Length times width divided by 2

• Base plus height

• 1/2 base times height

What does dividing by 2 in the area formula represent?

• Halving the height

• Halving the base

• Halving the perimeter

• It's a specific property of triangles

In the first example, what is the perimeter of the triangle?

• 60 meters

• 70 meters

• 120 meters

• 50 meters

What is the area of the triangle in the first example?

• 30 square meters

• 240 square meters

• 60 square meters

• 120 square meters

Which side length is not needed when calculating the area of a triangle?

• The base

• The height

• The longest side

• None, all sides are needed

Can the order of adding side lengths affect the perimeter calculation?

• No, the result remains the same

• Yes, it changes the result

• Yes, but only for equilateral triangles

• Only in certain triangles

For the second example, what is the correct perimeter?

• 45 feet

• 75 feet

• 55 feet

• 35 feet

What is the area of the triangle in the second example?

• 75 square feet

• 150 square feet

• 45 square feet

• 100 square feet