Area and Perimeter of Triangles

Anil Kumar presents a problem involving similar triangles, focusing on a right triangle with sides measuring 5 cm, 12 cm, and 13 cm. The task is to find the perimeter and area of a similar triangle enlarged by a scale factor of 1.5. The video explains how to calculate the perimeter and area of both the original and enlarged triangles, emphasizing the use of scale factors and efficient problem-solving methods.

What are the side lengths of the given right triangle?

• 7 cm, 24 cm, 25 cm

• 5 cm, 12 cm, 13 cm

• 3 cm, 4 cm, 5 cm

• 6 cm, 8 cm, 10 cm

How do you calculate the perimeter of a triangle?

• Add the base and height

• Multiply all the side lengths

• Add all the side lengths

• Multiply the base and height

What is the perimeter of the given right triangle?

• 40 cm

• 35 cm

• 25 cm

• 30 cm

How is the area of a right triangle calculated?

• Half of the perimeter

• Base times height

• Half of base times height

• Base plus height

What is the area of the given right triangle?

• 30 cm²

• 40 cm²

• 25 cm²

• 35 cm²

What is the scale factor used to enlarge the triangle?

• 1.5

• 2

• 1.25

• 1.75

How does the scale factor affect the side lengths of the enlarged triangle?

• Each side is multiplied by the scale factor

• Each side is subtracted by the scale factor

• Each side is divided by the scale factor

• Each side is added to the scale factor

What is the perimeter of the enlarged triangle?

• 45 cm

• 40 cm

• 50 cm

• 55 cm

How is the area of the enlarged triangle calculated using the scale factor?

• Add the original area to the scale factor

• Divide the original area by the scale factor

• Multiply the original area by the scale factor

• Multiply the original area by the square of the scale factor

What is the area of the enlarged triangle?

• 75 cm²

• 67.5 cm²

• 60 cm²

• 72 cm²