
Triangle Area and Trigonometric Functions
Interactive Video
•
Mathematics
•
7th - 8th Grade
•
Practice Problem
•
Hard
Aiden Montgomery
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the basic formula for calculating the area of a triangle?
Half base times height
Base minus height
Base times height
Base plus height
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the term used for the perpendicular line from the base to the opposite vertex in a triangle?
Bisector
Median
Hypotenuse
Altitude
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a right-angled triangle, what trigonometric function relates the opposite side to the hypotenuse?
Cosine
Tangent
Sine
Secant
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for the area of a triangle using two sides and the sine of the included angle?
a b cosine c
a b sine c
Half a b cosine c
Half a b sine c
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it unnecessary to know the height when using the sine formula for the area of a triangle?
The formula uses two sides and an angle
The formula is independent of any measurements
The formula directly uses the base and height
The formula only requires one side
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which angle is used in the formula half a b sine c for calculating the area of a triangle?
The smallest angle
The largest angle
Any angle in the triangle
The included angle between sides a and b
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the included angle in the sine formula for the area of a triangle?
It is the largest angle in the triangle
It is the smallest angle in the triangle
It is the angle between the two given sides
It is the angle opposite the base
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