Question

Help ASAP 15 Points

Find the perimeter. Round to the nearest tenth.
7.7 cm.
13.5 cm.
6.6 cm.

Answer 1

13.5-6.6= 6.9 (nice)

a^2+b^2=c^2

6.9^2+b^2=7.7^2

b=3.41760149813

13.5+7.7+6.6+3.41760149813= 31.2176014981

( i might be wrong)