Perimeter and Area of rectangles, triangles, andComposite Shapes

Calculate the perimeter of a rectangle with length 5 cm and width 3 cm.

• 12 cm

• 20 cm

• 16 cm

• 10 cm

Tags

CCSS.4.MD.A.3

How do you find the area of a triangle?

• Area = base * height

• Area = base + height

• Area = 0.5 * (base + height)

• Area = 0.5 * base * height

Tags

CCSS.6.G.A.1

Find the area of a triangle with base 4 cm and height 6 cm.

• 20 square cm

• 12 square cm

• 10 square cm

• 24 square cm

Tags

CCSS.6.G.A.1

What is the formula for finding the perimeter of irregular shapes?

• Perimeter = Square root of all side lengths

• Perimeter = Sum of all side lengths

• Perimeter = Product of all side lengths

• Perimeter = Area divided by 2

Tags

CCSS.3.MD.D.8

Calculate the perimeter of an irregular shape with sides measuring 3 cm, 4 cm, 5 cm, and 6 cm.

• 20 cm

• 15 cm

• 10 cm

• 18 cm

Tags

CCSS.3.MD.D.8

How can you calculate the perimeter of a polygon?

• Divide the sum of the angles by the number of sides.

• Multiply the lengths of all the sides of the polygon.

• Subtract the area from the sum of the sides.

• Add the lengths of all the sides of the polygon.

Tags

CCSS.3.MD.D.8

Determine the perimeter of a regular pentagon with side lengths of 8 cm each.

• 40 cm

• 42 cm

• 36 cm

• 32 cm

Tags

CCSS.3.MD.D.8

What is the method to find the area of composite shapes?

• Guess the area based on intuition without any calculations

• Use the perimeter of the shapes to determine the area

• Divide the shapes into smaller pieces and calculate the area of each piece separately

• Calculate the area of each individual shape and then combine them based on the overall shape (addition or subtraction).

Find the area of a composite shape made up of a rectangle with dimensions 4 cm by 6 cm and a triangle with base 5 cm and height 3 cm.

• 31.5 cm^2

• 15 cm^2

• 18 cm^2

• 24 cm^2

Tags

CCSS.6.G.A.1