

USE CALCULATOR -_-

<em><u>STAN </u></em><em><u>TREASURE</u></em>
Answer:
<BCA = 44.4°
Step-by-step explanation:
Reference angle = <BCA = C
Opposite side length = x = 7 cm
Hypotenuse = y = 10 cm
Applying trigonometric ratio, we would have:



<BCA = 44.4° (to 3 SF)
< 1 and < 2......adjacent angles...because they have a common side and a comon vertex
< 1 and < 2.....complimentary angles....because when added, they equal 90
Answer:
option (2)
Step-by-step explanation:
Using the cofunction identity
cosx = sin(90 - x) , then
cosb = sin(90 - b) = 0.75
B = 40.95d + 50.70 .......