Answer:
2x^3
C
Step-by-step explanation:
Since it is as a ratio of 14:31 there has to be a factor of something. Let's assume this factor as x.
Therefore,
14x + 31x = 90
45x = 90
x = 2
So we have a factor of two. Plug x back into the equation.
The larger angle is 31 * 2 = 62 degrees.
Let the length of one leg be x then another leg is (x+2)
According to Pythagoras theorem,
x^2 + (x+2)^2=16^2
=> x^2 + 2x - 126 =0
=>x= √(126 - 1) = 10.225
By sreedharchaya's formula
I searched for a calculator on my computer and got 109.888888889.
