Answer:
Step-by-step explanation:
Pythagorean formula:
a2 + b2 = c2
Now just put in these values:
If a is 5 and b is 7, then the formula will be:
5^2+7^2=c^2
= 25+49=c^2
c^2=74
Now remove the 'squared' from c by square rooting both sides to get roughly
8.6 (to 2 dp)
