The sides of the triangle representing three force vectors are in the ratio 2000 : 1732 : 1000. The angles of
the triangle (in degrees) are
(A) 70, 65, 45
(B) 80, 55, 45
(C) 90, 60, 30
(D) 90. 61. 39
Answers
Answered by
15
Answer:
90, 60, 30
Explanation:
The sides of the triangle representing three force vectors are in the ratio 2000 : 1732 : 1000. The angles of
the triangle (in degrees) are
(A) 70, 65, 45
(B) 80, 55, 45
(C) 90, 60, 30
(D) 90. 61. 39
(C) 90, 60, 30 is correct answer
2000 / SinA = 1732/SinB = 1000/SinC where A + B + C = 180°
Solving we get 90, 60, 30
Answered by
0
Answer:
option C is correct
90 , 60, 30
Explanation:
step 1 : simplify the ratio given
2000 : 1732 : 1000
= 2 : 1.732 : 1
now, we know that = 1.732
so the ratio becomes
2 : root 3 : 1
sin 30 = 1/2
sin60 = root3/2
so option c is correct
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