solve for the values of A and B and C and D with full workings and solution (this problem is from my 5th grade math book, just for fun)
Answer:
Approximately 81.159
Step-by-step explanation:
First, set up the equation
56 = (0.69)(x)
^ is 69% of a number
Divide each side by 0.69 to simplify
56 / 0.69 = x
x ≈ 81.159420...
The measure of the angle x is 40.2 degrees after applying the sin ratio option second 40.2° is correct.
Trigonometry is a branch of mathematics that deals with the relationship between sides and angles of a right-angle triangle.
We have a right-angle triangle shown in the picture.
From the sin ratio:
sinx = side opposite to angle/hypotenuse
sinx = 12/18.6 = 0.645
x = sin⁻¹(0.645)
x = 40.17≈ = 40.2 degrees
Thus, the measure of the angle x is 40.2 degrees after applying the sin ratio option second 40.2° is correct.
Learn more about trigonometry here:
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what is the value of p?