Answer:
Answer is ...Obtuse
Step-by-step explanation:








We get,
m<ABC =

Hence <ABC is obtuse
Answer:
d)
Step-by-step explanation:
<u><em>Explanation</em></u>
Given expression
= 
By using
(ab)ⁿ = aⁿbⁿ

= 
After simplification , we get


No you had it right, it is around the 18 / 3 and the 5 + 1
The square root of 39 is 6.224