Two-Dimensional Area Formulas

Area of a circle.

• A=πr²

• A=2πr

Tags

CCSS.7.G.B.4

Give the most precise name of the figure and the correct formula(s) to find the area.

• Trapezoid

• Rhombus

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• 
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Tags

CCSS.6.G.A.1

What is the area formula for a triangle?

• A = lw

• A = 1/2bh

• A = 1/2h(b₁+b₂)

• A = s²

Tags

CCSS.6.G.A.1

Find the area of the square.

• 25 units²

• 10 units²

• 100 units²

• 20 units²

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the area formula for a circle?

Tags

CCSS.7.G.B.4

What is the area formula for a trapezoid?

• A = lw

• A = 1/2bh

• A = 1/2h(b₁+b₂)

• A = 1/2d₁d₂

Tags

CCSS.6.G.A.1

Find the area of the triangle.

• A = 40cm²

• A = 20cm²

• A = 13cm²

• A = 80cm²

Tags

CCSS.6.G.A.1

Find the area of the circle. Use 3.14 for pi.

Tags

CCSS.7.G.B.4

Select the expression to calculate the area of this trapezoid.

Tags

CCSS.6.G.A.1

What is the area formula for a PARALLELOGRAM?

• A= bh

• A= s²

• A= ¹/₂ b h

• A= ¹/₂ (b1 + b2) h

Tags

CCSS.6.G.A.1