# 1 find the area of abc if c 1064 a 7 cm and b 13 cm

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(1)Find the area of∆ ABCifC=106.4°,a=7cmandb=13cm.
of the aboveBCDE
(2)A vectoruwith a magnitude of 150lbsis inclined to the right and upward52from the horizontal. Resolve the vector into components.°BCDE
(3)A2500kgblock is suspended by two ropes, as shown. Find the tension each rope.(A)|R|1420kg,|S|1790kg(B)|R|1830kg,|S|2241kg(C)|R|2241kg,|S|1830kg(D)|R|2475kg,|S|1360kgof the above(E)¿RS
R cos(45) + S cos(60) = 2500R = 2241S = 18304-5True/False. Determine whether the following statement is true or false.Explain your reasoning.(4)For any point(x, y)on the unit circle,¿x, y>¿is a unit vector.of the above(A)True()False()not enoughinformation()¿Solution:True as unit vector has magnitude 1 and lies on unit circle.BCD
(5)When two angles and an included side of a triangle are known, the triangle cannot besolved using the law of cosines.of the aboveBCD
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Fall
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Math, Norm, 3rd millennium