Triangle Ratios and Perimeters

The video tutorial explains how to find the perimeter of a triangle (PQR) similar to another triangle (ABC) using the concept of proportionality of sides. It demonstrates solving for unknown side lengths using proportions and calculating the perimeter. An alternative method using the ratio of perimeters is also presented.

What is the given side length of triangle PQR?

• 12

• 16

• 8

• 6

Which sides are proportional in similar triangles ABC and PQR?

• AB and PQ

• CA and QR

• BC and PQ

• AB and PR

What is the reduced form of the ratio 6/8?

• 3/4

• 2/3

• 4/5

• 5/6

What is the length of side PQ after solving the proportion?

• 14

• 12

• 16

• 18

What type of triangle is ABC?

• Isosceles

• Scalene

• Right

• Equilateral

What is the length of side QR in triangle PQR?

• 8

• 12

• 20

• 16

What is the perimeter of triangle PQR?

• 44

• 32

• 36

• 40

What is the ratio of the perimeters of triangles ABC and PQR?

• 5/6

• 4/5

• 6/8

• 3/4

What is the perimeter of triangle ABC?

• 24

• 30

• 42

• 36

What is the result of cross-multiplying 3P = 120?

• P = 60

• P = 30

• P = 50

• P = 40