Area Review

Area Review

How to solve a word problem

• Find key words

• If it mentions a shape...DRAW IT

• If it gives measurements...LABEL THEM

• Determine what you are looking for

How to solve once to know the problem

• Write down the formula that applies to the problem

• plug in the information you know

• calculate

• write your answer... USING UNITS

Example:

Hugh orders a party banner for his son's birthday party. The length and width of the banner are 72 inches and 23 inches respectively. What is the area of the party banner?

Hugh orders a party banner for his son's birthday party. The length and width of the banner are 72 inches and 23 inches respectively. What is the area of the party banner?

• Find key words

• If it mentions a shape...DRAW IT

• If it gives measurements...LABEL THEM

• Determine what you are looking for

Hugh orders a party banner for his son's birthday party. The length and width of the banner are 72 inches and 23 inches respectively. What is the area of the party banner?

• Write down the formula that applies to the problem

• plug in the information you know

• calculate

• write your answer... USING UNITS

Example:

Amy needs to order a shade for a triangular-shaped window that has a base of 6 feet and a height of 4 feet. What is the area of the shade ?

Amy needs to order a shade for a triangular-shaped window that has a base of 6 feet and a height of 4 feet. What is the area of the shade ?

• Find key words

• If it mentions a shape...DRAW IT

• If it gives measurements...LABEL THEM

• Determine what you are looking for

Amy needs to order a shade for a triangular-shaped window that has a base of 6 feet and a height of 4 feet. What is the area of the shade ?

• Write down the formula that applies to the problem

• plug in the information you know

• calculate

• write your answer... USING UNITS

Example:

A trapezoid has an area of 294 square yards. Its height is 14 yards and the length of one base is 30 yards. Find the length of the other base.

A trapezoid has an area of 294 square yards. Its height is 14 yards and the length of one base is 30 yards. Find the length of the other base.

• Find key words

• If it mentions a shape...DRAW IT

• If it gives measurements...LABEL THEM

• Determine what you are looking for

A trapezoid has an area of 294 square yards. Its height is 14 yards and the length of one base is 30 yards. Find the length of the other base.

• Write down the formula that applies to the problem

• plug in the information you know

• calculate

• write your answer... USING UNITS

Example:

Marco’s family has a garden shaped like a parallelogram. The height of the parallelogram is 7 feet and its base is 14 feet. What is the area of the garden?

Marco’s family has a garden shaped like a parallelogram. The height of the parallelogram is 7 feet and its base is 14 feet. What is the area of the garden?

• Find key words

• If it mentions a shape...DRAW IT

• If it gives measurements...LABEL THEM

• Determine what you are looking for

Marco’s family has a garden shaped like a parallelogram. The height of the parallelogram is 7 feet and its base is 14 feet. What is the area of the garden?

• Write down the formula that applies to the problem

• plug in the information you know

• calculate

• write your answer... USING UNITS

Multiple Choice

Find the area of a parallelogram in which the lengths of two adjacent sides are 60 cm and 75 cm, and the smaller height is 7 cm.

• 420 cm sq

• 525 cm sq

• 560 cm

• 525 cm

Multiple Choice

Fran designed a flag that measured 9 inches in length and 5 inches in width. Find the area of the flag.

• 45 in

• 40 in

• 23.5 in sq

• 45 in sq

Multiple Choice

The height of a triangle is 4 cm. The area of the triangle is 16 cm sq. Find the base.

• 8 cm

• 8 cm sq

• 2 cm

• 4 cm sq

Multiple Choice

The trapezoid bases are and 7 cm and 11 cm. His height is 4 cm. Calculate the area of the trapezoid

• 308 cm sq

• 44 cm sq

• 36 cm sq

• 72 cm sq