10
QuizMultiple Choice
Dot Product and Work — Unit test
Question 10 of 25 • Precalculus
A child designs a flag in the shape of a rhombus, as shown in the diagram below. Which expression can be used to determine the side length of the rhombus?
Answer
A
StartFraction 10 over cosine 30 degree EndFraction.
B
StartRoot 800 minus 800 cosine 30 degree EndRoot.
C
40 cosine 30 degree.
D
StartRoot 400 minus 40 cosine 30 degree EndRoot.