Area of Triangles and Parallelograms plus missing dimensions

A parallelogram has an area of 72 square inches. If its height is 8 inches, what is its base?

• 9 inches

• 6 inches

• 12 inches

• 8 inches

A triangle has an area of 45 square feet. If its base is 10 feet, what is its height?

• 9 feet

• 4.5 feet

• 10 feet

• 12 feet

Two triangles have the same height. One has a base of 8 cm and the other has a base of 12 cm. How much greater is the area of the larger triangle?

• The area of the larger triangle is 1.5 times greater than the smaller triangle, or 50% greater.

• The area of the larger triangle is 2 times greater than the smaller triangle, or 100% greater.

• The area of the larger triangle is 1.25 times greater than the smaller triangle, or 25% greater.

• The area of the larger triangle is 1.75 times greater than the smaller triangle, or 75% greater.

What happens to the area when you double the base?

• The area doubles

• The area triples

• The area remains the same

• The area is halved

What happens to the area when you double both the base and height?

• The area doubles

• The area becomes four times larger

• The area stays the same

• The area is halved

How can you find the height if you know the area and base?

• By dividing the area by the base

• By multiplying the area and base

• By adding the area and base

• By subtracting the base from the area

Which is the correct area formula for Parallelograms?

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• 
• 

Tags

CCSS.HSG.CO.C.11

What are possible dimensions of a parallelogram with an area of 36 ft²? 

• 18 ft, 18 ft
• 12 ft, 3 ft
• 6 ft, 8 ft
• 24 ft, 12 ft

Tags

CCSS.HSG.GMD.A.1

• 18 cm

• 9 cm

• 12 cm

• 6 cm

Which is the correct area formula for Triangles?

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• 
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Tags

CCSS.HSG.GPE.B.7

CCSS.HSG.SRT.D.9