Answer:
22 km
Step-by-step explanation:
Well if sides of the triangle are 20 km and 21 km then it has to be 22 km
V = a^3
729 = a^3
9^3 = a^3
9 = a
answer. side length = 9 in
4x=x-1+19 -> 4x=x+18 (then you minus 1x from both sides) -> 3x=18; x=6
Answer:
No, this isn't a right triangle.
Step-by-step explanation:
First of all, the hypotenuse is the longest side (in this case that is 50), so that's what we're working for.
The formula for the Pythagorean theorem is :

14 squared equals 196, and 28 squared equals 784. Add these and you get 980. The square root of 980 is not 50, so we know that this is not a right tryangle.