Perimeter and Area of Rectangles and Triangles

How do you find the PERIMETER of a rectangle?

• Multiply the sides together

• Add up the lengths of all the sides

• Add a bunch of random letters together

• Multiply the sides together, then remove two of them

Tags

CCSS.3.MD.D.8

Which of the following is the AREA formula for a rectangle?

• $Area=b\cdot h$

• $Area=\frac{b\cdot h}{2}$

• $Area=\pi r^2$

• $Area=l^4$

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.7

Which of the following is the AREA formula for a triangle?

• $Area=b\cdot h$

• $Area=\frac{b\cdot h}{2}$

• $Area=\pi r^2$

• $Area=l^4$

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.7

How do you find the PERIMETER of a triangle?

• Multiply the sides together

• Add up the lengths of all the sides

• Add a bunch of random letters together

• Multiply the sides together, then remove two of them

Tags

CCSS.3.MD.D.8

What is the perimeter of the triangle?

• 51 cm

• 59 cm

• 45 cm

• 48 cm

Tags

CCSS.3.MD.D.8

Find the area of this triangle.

• 12 in²

• 36 in²

• 18 in²

• 24 in²

Using the formula for the area of a rectangle, solve for the area of the rectangle.

• 24 cm²

• 11 cm²

• 12 cm²

• 22 cm²

What is the perimeter of the rectangle?

• 28 in

• 46 in

• 56 in

• 187 in