Answer:
21
Step-by-step explanation:
s=2
so, v=2+19
19+2=21
RESPUESTA: no es un triangulo
EXPRICACION
You can use the sum of angles identities, then rearrange to put the result in the form of tangents.
Answer: C = 7.62
You can verify this answer using this calculator.
7^2 + 3^2 = 58
√58 = 7.62