How to find out the value of the lettered sides
2 answers:
Answer:
<h2>a = 9.2</h2><h2>b = 8.65</h2><h2 />
Step-by-step explanation:
<u>First</u><u> </u><u>Question</u>
To find a we use sine
sin ∅ = opposite / hypotenuse
a is the opposite
12.8 is the hypotenuse
sin 46 = a / 12.8
a = 12.8 sin 46
<h3>a = 9.2</h3>
<u>Sec</u><u>ond</u><u> question</u>
To find b we use cosine
cos∅ = adjacent / hypotenuse
b is the adjacent
16.8 is the hypotenuse
cos 59 = b / 16.8
b = 16.8 cos 59
<h3>b = 8.65</h3>
Hope this helps you
Step-by-step explanation:
sin 46°= a/12.8
a = sin46° * 12.8 = 9.20
cos59°=b/16.8
b = cos59°*16.8 = 8.65
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