Geometric Application Unit 6

Area Formulas

Groups:

(a) Rectanlge and Square

,

(b) Triangle

,

(c) Trapeziod

What is the formula for the perimeter of a rectangle if the length is l and the width is w?

• P = l * w

• P = 2l + 2w

• P = l + w

• P = 2(l + w)

If a rectangle has a length of 12x and a width of 5x², what is the area?

• 12x + 5x²

• 17x²

• 60x²

• 60x³

For a triangle with sides 4a²b, 10a²b, and 3ab, what is the perimeter?

• 27ab

• 14a³b

• 14a²b + 3ab

• 17a²b + 3ab

The base of the triangle is ​ (a)   and the height of the triangle is ​ (b)   .

• 3ab

What is an equialteral triangle?

• A triangle with two sides of equal length
• A triangle with all sides of equal length.
• A triangle with no equal sides
• A triangle with all sides of different lengths

What is the area of an equilateral triangle with a base of 20m³n⁵ and a height of 4m?

• 20m⁴n⁵

• 40m⁴n¹⁰

• 40m³n⁵

• 80m³n⁵