Understanding Isosceles Triangles and the Pythagorean Theorem

The video tutorial guides viewers through finding the area of an isosceles triangle. It begins by providing hints, such as recognizing the triangle type and using the Pythagorean theorem. The tutorial explains the area formula, identifies the base, and uses congruence to determine the height. The Pythagorean theorem is applied to calculate the height, and finally, the area is computed using the base and height.

What type of triangle is being discussed in the video?

• Isosceles

• Equilateral

• Scalene

• Right

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Which theorem is suggested as useful for solving the problem?

• Thales' Theorem

• Pythagorean Theorem

• Sine Rule

• Cosine Rule

Tags

CCSS.6.G.A.1

What is the formula for the area of a triangle?

• 1/2 times base times height

• Base minus height

• Base times height

• Base plus height

What is the length of the base of the triangle?

• 13

• 12

• 10

• 5

Tags

CCSS.HSG.CO.C.9

What property of isosceles triangles helps in finding the height?

• Equal angles

• Congruent triangles

• Parallel sides

• Equal sides

How is the base divided when an altitude is drawn in an isosceles triangle?

• Randomly

• Equally

• Unequally

• Not divided

Tags

CCSS.8.G.B.8

What equation is used to find the height using the Pythagorean Theorem?

• h^2 + 5^2 = 13^2

• h^2 + 10^2 = 13^2

• h^2 + 12^2 = 13^2

• h^2 + 5^2 = 12^2

Tags

CCSS.6.G.A.1

What is the value of h, the height of the triangle?

• 12

• 11

• 10

• 13

Tags

CCSS.6.G.A.1

What is the final area of the triangle?

• 80 square units

• 70 square units

• 60 square units

• 50 square units

Tags

CCSS.6.G.A.1

What is the final step in calculating the area of the triangle?

• Using the Pythagorean Theorem

• Multiplying 1/2, base, and height

• Finding the height

• Finding the base

Tags

CCSS.6.G.A.1