The fourth graph or D (the one in the bottom right corner) this is because a pyramid consists of four triangles and one square at the bottom.
Correct me if wrong
Have a nice day :D
~Hackermcpe
By definition, the sine of an angle is given by:

Where,
C.O: opposite leg
h: hypotenuse
The hypotenuse is given by:

So, replacing values we have:

Rewriting we have:
Answer:
the sine value of this function is:
A)5 times square root 61 over 61
Answer:
around 917
Step-by-step explanation:
15/3x5+4x8=40
1)15/3x9x8=40
2)15/27x8=40
3)15/216=40
4)14.4=40
25 root 3 divided by 2
Base is 5. Height is 5 root 3
Multiply then divide by 2