Understanding the Side-Angle-Side Method for Finding Triangle Area

The video tutorial explains how to find the area of a triangle using the side-angle-side method. It begins by defining the method, which involves knowing two sides and the included angle of a triangle. The tutorial then introduces the formula: (a * b * sin(C)) / 2, where a and b are the sides, and C is the included angle. The video further explains how to identify the sides and angles in a triangle and demonstrates the calculation process using an example. The final result is obtained by multiplying the sides and the sine of the angle, then dividing by two to find the area in square units.

What does the side-angle-side method require you to know about a triangle?

• Three angles

• Three sides

• Two angles and a side

• Two sides and the included angle

Tags

CCSS.HSG.SRT.D.9

Which formula is used to find the area of a triangle using the side-angle-side method?

• a * b * sin(C) / 2

• a * b * c

• a * b * c / 2

• a + b + c

Tags

CCSS.HSG.SRT.D.9

In the side-angle-side method, what does 'C' represent in the formula?

• The length of side C

• The included angle

• The area of the triangle

• The perimeter of the triangle

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CCSS.HSG.SRT.C.8

If side a is 10 and side b is 15, what is the product of these sides before applying the sine function?

• 50

• 100

• 150

• 25

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CCSS.HSG.SRT.C.7

What is the sine of 30 degrees?

• 0.866

• 0

• 1

• 0.5

Tags

CCSS.HSG.SRT.D.9

After calculating the product of the sides and the sine of the angle, what is the next step?

• Add 2

• Multiply by 2

• Divide by 2

• Subtract 2

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CCSS.6.G.A.1

What is the final area of the triangle in the example given?

• 50 square units

• 150 square units

• 37.5 square units

• 75 square units

Tags

CCSS.3.MD.C.6

Why is it important to square the units when calculating the area?

• To make the number larger

• Because area is a two-dimensional measure

• To ensure the calculation is correct

• To convert to a different unit

What is the purpose of the side-angle-side method?

• To find the perimeter of a triangle

• To find the area of a triangle

• To find the volume of a triangle

• To find the height of a triangle