3088.22813276
hope this helps, you could've entered this into a calculator for next time.
Answer:
c =
km
Step-by-step explanation:
Here's the required formula to find the missing side of triangle by pythagoras theorem :

a = 20 km
b = 21 km
c = ?
Substituting all the given values in the formula to find the third side of triangle :

Hence, the length of missing side of triangle is 29 km.

Does it have any ANSWER CHOISES!
Answer:
-2.77778°C
Step-by-step explanation:
(27°F − 32) × 5/9 = -2.778°C