Answer:
Cube
X =8.25
Step-by-step explanation:
The answer is about 36.9%
I just guessed and checked. 95-60= 35
So .3685×95 is the closest to equaling 35
So :

?
First, you want to bring everything together on the top of the fraction.
12=24/2 so you can have

Add like terms -- 12 +24 = 36

Now we are at

Which is the lowest possible simplified version while remaining at exact value.
Feel free to check my math! I kinda did this off the top of my head.
You haven't included a diagram, however, if it's an isosceles triangle 2 of its sides will be the same and 1 will be different