Answer:
A) 23.7°
Explanation:
You can use the law of sines to solve this, sinA/a= sinC/c
sin42/5= sinC/3
option A
To find the ∠C, we can use the Law of Sine.
Side 'a' faces ∠A, side 'b' faces ∠B and side 'c' faces ∠C
a = 5 cm ; b = 7 cm ; c = 3 cm
∠A = 42°
= 0.4014
C = arcsin (0.4014)
C = 23.67
∠C = 23.7°
9.4m questions
12.2m answers