Answer:
sorry i dont know, i just rlly need points
Step-by-step explanation:
Answer is: "A"
Formula used:
V = 4/3πr^3
we already know r so
V = 4/3(π)13^3
Answer:
12√2.
Step-by-step explanation:
You can do this by the Pythagoras theorem:
20^2 = x^2 + (4sqrt7)^2 where x is the distance required.
x^2 = 20^2 - (4sqrt7)^2
= 400 - 112
= 288
x = √288
= √144 *√2
= 12√2.
