
Vector Operations and Triangle Area

Interactive Video
•
Mathematics, Physics
•
9th - 12th Grade
•
Hard

Lucas Foster
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What mathematical operation is used to find the area of a triangle using vectors?
Subtraction
Addition
Cross product
Dot product
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which points are used to form vectors in the triangle?
Points P, Q, and S
Points P, Q, and R
Points Q, R, and S
Points P, R, and S
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the X component of vector PQ?
Subtract the X coordinate of P from Q
Add the X coordinates of P and Q
Subtract the X coordinate of Q from P
Multiply the X coordinates of P and Q
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in finding the cross product of two vectors?
Subtract the vectors
Multiply the vectors
Add the vectors
Use a 3x3 determinant
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of the cross product of vectors PQ and PR?
A vector with components (6, 1, 11)
A vector with components (1, 23, 29)
A vector with components (7, 8, 9)
A scalar value
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the magnitude of a vector calculated?
By adding the components
By taking the square root of the sum of the squares of its components
By subtracting the components
By multiplying the components
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final step to find the area of the triangle after calculating the magnitude?
Multiply by 1/2
Multiply by 2
Divide by 2
Add 1/2
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