20 • 12 is 240
1/2 • 12 • 4 is 24
so 264
If the legs are length a and b and hyptonuse is c then
a²+b²=c²
so
if the legs are 20 and 21 and the hypotnuse is x then
20²+21²=x²
400+441=x²
841=x²
29=x
8217 I think but I'm not sure
Answer:
Cannot be determined
Step-by-step explanation:
There is not enough information to solve this question. You would need to know how many friends he has in order to solve this.
