D and E are midpoints of side AB and AC respectively of the ΔABC. A line drawn from A meets BC at H and DE at K. AK : KH = ?
(A) 1 : 1
(B) 1: 2
(C) 2 : 1
(D) 3 : 2
If each interior angle is doubled of each exterior angle of a regular polygon with n sides, then the value of n is
(A) 3
(B) 6
(C) 5
(D) 8
The length of the two sides forming the right angle of a right-angled triangle are 6 cm and 8 cm, then find the length of its circum radius:
(A) 6 cm
(B) 10 cm
(C) 5 cm
(D) 7 cm
The sides of a triangle are in the ratio of 7: 9 : 12. The difference between the lengths of largest and smallest sides is 15 cm . The length of the largest sides would be:
(A) 60 cm
(B) 24 cm
(C) 36 cm
(D) 21cm
A ladder 20 m long is leaning against a vertical wall. It makes an angle of 30° with the ground. How high on the wall does the ladder reach?
(A) 10 m
(B) 17.32 m
(C) 34.64 m
(D) 30 m
A kite is flying at a height of 50m. If the length of string is 100m then the inclination of string to the horizontal ground in degree measures is:
(A) 90
(B) 45
(C) 60
(D) 30
One watch which gains uniformly is one minute slow at 1 pm on Tuesday and it is two minutes fast at 1 am on the following Friday. When had it shown the correct time?
(A) 5.00 pm on Wednesday
(B) 9.00 pm on Wednesday
(C) 5.00 am on Wednesday
(D) 9.00 am on Wednesday
At what time between 7 and 8 o'clock will the hands of a clock be in the same straight line but, not together?
(A) 5 min. past 7
(B)
(C)
(D)
If 1 + sin2 A = 3 sin A cos A, then what are the possible values of tan A?
(A) 1, 0
(B) 1, 1/2
(C) 1 , 1/3
(D) 1, 3
What is the value of
(A) cosecA-sinA
(B) cosecA+cotA
(C) secA-cotA
(D) secA+cotA
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