1) Find the numeric value of the indicated angle(s) for the triangle ?ABC. Find

ID: 2904623 • Letter: 1

Question

1) Find the numeric value of the indicated angle(s) for the triangle ?ABC.

Find C if A = 110? and B = 31?.

Find A, B, and C if A = ? and B = C = 4?.

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2) Write the given number as a trigonometric function of an acute angle less than 45?.

a) sin 53?

b) tan 66?

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3) rite the given number as a trigonometric function of an acute angle greater than 45?.

a) sin 1?

b) tan 26?

1 . Since sum of all angles in a triangle is 180 degree.

hence,

a. angle C= 180-(A+B) =180 - (110 + 31) = 180- 141 =39

b. angle A= 180 - (B+C) =180 - (4 + 4) = 172

a) sin 53 = cos(90-53)=cos37

b) tan 66= cot(90-66)=cot33

a) sin 1= cos(90-1)=cot89

b) tan 26 =cot(90-26)=cot64

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