Area of Rectangles, Parallelograms and Triangles

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

How do you calculate the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width).

Tags

CCSS.4.MD.A.3

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height.

Tags

CCSS.6.G.A.1

Front

How do you calculate the perimeter of a parallelogram?

Back

Perimeter = 2 × (base + side length).

Tags

CCSS.3.MD.D.8

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height.

Tags

CCSS.6.G.A.1

Front

How do you find the height of a triangle if you know the area and base?

Back

Height = (2 × Area) / base.

Tags

CCSS.6.G.A.1

Front

What units are used to measure area?

Back

Square units (e.g., cm², m², mm²).

Tags

CCSS.3.MD.C.6

Front

What is the relationship between the base and height of a triangle?

Back

The base and height are perpendicular to each other.

Front

How can you determine the area of a triangle using Heron's formula?

Back

Area = √[s(s-a)(s-b)(s-c)], where s = (a+b+c)/2.

Tags

CCSS.6.G.A.1

Front

What is the significance of the base in calculating the area of parallelograms and triangles?

Back

The base is one side of the shape used in area calculations, and height is measured perpendicular to it.

Tags

CCSS.6.G.A.1