Answer:
Luis.
Step-by-step explanation:
180-90-20-40= 30
A triangle's angles have to make up 180 degrees, thus Luis is correct.
width=3
then length=5×3
now,
Area=l×b
= 15×3
=45
1. 7
2. 9
3. 9
4. 6
5. 10
I believe
The answer to your question is C.
