Answer:
5a. 2^2+2^2=c^2
5b. 2.8
5c. 13^2-5^2=b^2
5d.12
Step-by-step explanation:
All are based on a^2+b^2=c^2
2^2=4. 4+4=8 The square root of 8 is 2.8
You work backwards with the other one. 5^2+b^2=13^2
