Area of Isosceles Triangles

What type of triangle is being discussed?

• Equilateral

• Isosceles

• Scalene

• Right

Tags

CCSS.7.G.A.2

What is the formula for the area of a triangle?

• Base + Height

• Base x Height

• 1/2 x Base x Height

• Base / Height

Tags

CCSS.HSG.GMD.A.1

CCSS.HSG.GPE.B.7

CCSS.HSG.SRT.D.9

How is the height of the triangle determined?

• Using the Pythagorean theorem

• Dividing the base by 2

• Multiplying the base by 2

• Adding the lengths of all sides

Tags

CCSS.HSG.SRT.C.8

CCSS.HSG.SRT.D.11

CCSS.HSG.SRT.D.9

What is the length of the base of the triangle?

• 12 units

• 10 units

• 13 units

• 5 units

Tags

CCSS.5.MD.A.1

How are the congruent triangles identified in the problem?

• Both equal angles and sides

• By their equal sides

• By their equal angles

• By their color

Tags

CCSS.HSG.CO.B.7

CCSS.HSG.CO.B.8

CCSS.HSG.SRT.B.5

What is the calculated height of the triangle?

• 10 units

• 5 units

• 13 units

• 12 units

Tags

CCSS.HSG.SRT.C.8

CCSS.HSG.SRT.D.11

CCSS.HSG.SRT.D.9

What does the Pythagorean theorem relate in a right triangle?

• The perimeter of the triangle

• The square of the hypotenuse to the sum of the squares of the other two sides

• The difference of the side lengths

• The sum of the angles

Tags

CCSS.HSG.SRT.B.4

CCSS.HSG.SRT.C.8

Why is only the positive root of the height considered?

• Because height cannot be negative

• Because it simplifies the calculation

• Because the negative root is irrelevant

• All of the above

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.1

What is the area of the triangle?

• 144 square units

• 120 square units

• 60 square units

• 30 square units

Tags

CCSS.HSG.GPE.B.7

CCSS.HSG.SRT.D.9

Calculate the area.

(SHOW YOUR WORK)

Tags

CCSS.HSG.SRT.D.9