4. Is congruent and 5. Is prove hope that helps
Answer:
C. sin(90° - θ)
Step-by-step explanation:
A trig function of an angle equals the cofunction of the angle's complement.
The cofunction of cosine is sine, and the complement of θ is 90° - θ.
∴ cosθ = sin(90° - θ)
A=3b/4
B= 3b/4
C= 0
Hope this helps
20 tons is equal to 40,000 pounds
1 ton = 2000 pounds
180 degrees - 118 degrees - 34,6 degrees = 27, 4 degrees
Since the interior angles of a triangle sum up to 180 degrees.
Hope it helps!✨
