Diameter= 2*radius
=36*2
=72m
we won´t have any triangle with these measures.
law of cosines.
a²=b²+c²-2bc(cosФ)
Data:
a=1
b=2
A=31º
Therefore:
1²=2²+c²-4c(cos 31º)
c²-(4cos 31º)c+3=0
4cos 31º≈3.43
We have to solve this equation, and find out the number of solutions:
c=[4cos 31º⁺₋√(11.756-12)]/2=
c=(4cos 31º⁺₋√(-0.244)/2
Because we have the square root of a negative number, we don´t have any possible solutions, that is to say , there are not real solutions for this equation.
Answer: We don´t have any triangle with these measures.
The answer would be 20,775,4
Answer:
C
Step-by-step explanation:
To find the x- intercept let y = 0, hence
cos() = 0
= (0 ) =
multiply both sides by 2
x = π ← x- intercept