Area of Shapes

What is the formula for the area of a triangle?

• bh

• 1/2 bh

• 1/2 (a+b) h

• 2(bh)

Tags

CCSS.6.G.A.1

What is the formula for the area of a trapezoid?

• A = 1/2 (a+b) h

• A= bh

• A = 2 (bh)

• A = 1/2 bh

Tags

CCSS.6.G.A.1

If area of a rectangle is A = bh, why is the area of a triangle A = 1/2 bh?

• Triangles have a base (b) half as long as a rectangle, so we need to find 1/2 bh

• Triangles have a height (h) half as high as a rectangle, so we need to find 1/2 bh

• If you put two equal triangles together you get a rectangle, so 2(1/2(bh)) equals the area of a rectangle (bh)

Tags

CCSS.6.G.A.1

What shapes can you decompose this shape into?

Tags

CCSS.1.G.A.2

What is the area of the shape?

• 12ft

• 6ft²

• 6ft

• 12ft²

Tags

CCSS.6.G.A.1

Calculate the area of the trapezoid in ft2

Tags

CCSS.6.G.A.1

Calculate the area.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Fill in the missing value ONLY, not the units.

Tags

CCSS.6.G.A.1

Calculate the area of the circle.

Tags

CCSS.7.G.B.4

The blue part of the circle makes up how many degrees of the circle?

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1