Area of Triangles

My formula for finding the area of a triangle is

• Base times Height

• Base times Height divided by 2

• Base times Height times Width

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CCSS.HSG.SRT.D.9

• 4 km²
• 16 km²
• 64 km²
• 8 km²

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CCSS.HSG.GMD.A.1

CCSS.HSG.GPE.B.7

CCSS.HSG.MG.A.1

CCSS.HSG.SRT.D.9

Which number represents the height?

• 12
• 13
• 15
• 14

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CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

CCSS.HSG.SRT.D.11

Which number represents the base?

• 12
• 11
• 4 

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CCSS.6.G.A.1

What does area mean?

• the distance around a shape
• half the distance around a shape
• the amount of space outside a shape
• the amount of space inside a shape

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CCSS.HSG.GMD.A.1

CCSS.HSG.GPE.B.7

What is the area?

• 12 cm²
• 14
• 14 cm²
• 24 cm²

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CCSS.HSG.GMD.A.1

CCSS.HSG.SRT.D.9

What is the area?

• 9 m²

• 10 m²

• 20 m

• 20 m²

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CCSS.HSG.GMD.A.1

CCSS.HSG.MG.A.1

CCSS.HSG.SRT.D.9

What is the area?

• 30 m²

• 11 m²

• 25 m

• 15 m²

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CCSS.HSG.GMD.A.1

CCSS.HSG.MG.A.1

Find the area of a triangle with a height of 4 mm and a base of 6 mm?

• 5 mm squared
• 6 mm squared
• 12 mm squared
• 24 mm squared

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CCSS.HSG.GMD.A.1

CCSS.HSG.GMD.A.3

CCSS.HSG.SRT.D.9

To find the area of a triangle, you need to know the _________ and ________.

• sides and sides

• base and height

• bottom and top

• length and width

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CCSS.HSG.GMD.A.1

CCSS.HSG.SRT.D.9