Q 1: In triangle ABC, a = 8.4 cm, b = 7.6 cm and c = 9.2 cm. Calculate the area of triangle ABC. 50 sq. cm 30 sq cm 45 sq cm

Q 2: A person standing on the bank of a river, observes that the angle subtended by a tree on the opposite bank is 60 degrees, when he retires 40 metres from the bank, he finds the angle to be 30 degrees. Find the height of the tree. 64 metres 20 metres 34 metres

Q 3: Find the angle in radian through which a pendulum swings if its length is 75 cm and the tip describes an arc of length 15 cm 1/3 2/5 1/5

Q 4: If in two circlesarcs of the same length subtend angles 60^{o} and 75^{o} at the centre, find the ratio of their radii. 5:4 2:3 1:2

Q 5: Find the angle in radian through which a pendulum swings if its length is 75 cm and the tip describes an arc of length 10 cm 3/15 4/15 2/15

Q 6: In a circle of diamter 40 cm, the length of a chord is 20 cm. Find the length of the minor arc of the chord. 20/3 5/3 /3

Q 7: From the light house the angles of depression of two ships on opposite sides of the light house are observed to be 30^{o} and 45^{o}. If the height of the light house is 300 metres, find the distance between the ships if the line joining them passes through foot of the light house. 800 metres 819.6 metres 809 metres

Q 8: Find the radian measure corresponding to 37^{o}30^{l}. 5/4 5/8 5/24

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