Study Set Content:
The coterminal angle of 120 is
A 240
B -240°
C. 480°
D. -480°
B -240°
Three forces 20 N, 30 N and 40 N are in equilibrium. Find the biggest angle formed by these forces.
A 104.48 deg
B. 102.36 deg
C. 101.42 deg
D. 103.21 deg
A 104.48 deg
In the curve y = tan 3x, what is its period?
A. 3π
B. π/3
C. 2π/3
D. π
B. π/3
Simplify sec ∅ - (sec ∅) (sin² ∅)
A cos ∅
B. sin ∅
C. tan ∅
D. cot ∅
A cos ∅
If sec 2A = 1/ sin 13A, determine the angle A in degrees.
A. 5 degrees
B. 6 degrees
C. 3 degrees
D. 7 degrees
B. 6 degrees
An oblique triangle is inscribed in a circle. If one side of the triangle has a length of 5 cm and the angle subtended by the side is 15 deg., determine the area of the circle.
A. 293.12 m²
B. 160.57 m²
C. 213.43 m²
D. 123.43 m²
A. 293.12 m²
Any lines segment joining a vertex of a triangle to a point on the opposites side
A median
B. secant line
C. cevian
D. euclidian line
C. cevian
A twin engine turbo prop aircraft is flying at an air speed of 300 mph. If there is a wind blowing toward the East at 50 mph, what would be the aircraft's compass reading in order for its course to be 30 deg?
A. 21.7 deg
C. 32.3 deg
B. 30 deg
D. 7.3 deg
A. 21.7 deg
What is the angle whose tangent is 1 and whose sine is negative?
A. 225° + k360° where k is any integer
B. 225°+k360° where k is zero
C. 225° + k360° where k is negative integer
D None of these
D None of these
If the vertex of an isosceles triangle is 80° and the side along the opposite the vertex is 120 cm. What is the side of the triangle.
A. 93.3
B. 90.66
C. 95.45
D. 102.65
A. 93.3
An F-16 having a speed of 120 miles an hour in calm air is pointed in a direction 30 deg east of north. A wind having a velocity of 15 miles an hour is blowing from the northwest. Find the speed of the airplane relative to the ground.
A. 223 mph
B. 175 mph
C 117 mph
D. 124 mph
C 117 mph
In which quadrant are both cosine and tangent negative?
A. I
B. II
C. Ill
D. IV
B. II
The acute angle is radians between the minute and the hour hand of a clock when the time is 4:20 is
A. π/18
B. л/9
С. л/6
D. π/3
A. π/18
How many radians are there in the two successive numbers on the face of a clock.
A. π/2
C π/6.
B. π/3
D. π/4
C π/6.
The radius of the circle whose arc of length 15 cm makes an angle of % radian at the center is_
A.10 cm
B.11.25 cm
C. 20 cm
D. 22.5 cm
C. 20 cm
If sin A= 2.571x, cos A = 3.06x, and sin 2A=3.939x. find the value of x?
A. 0.350
C. 0.250
B. 0.100
D. 0.150
C. 0.250
An angle which is 1/400th of the full revolution.
A. Gon
C. Degree
B. Mil
D. Radian
A. Gon
A boy, who can row 6 km/hr in still water, heads directly across the current of a river flowing at the rate of 4.5 km/hr. Find the actual rate and direction of his motion.
A. 7.5 km/hr @ 53.13°
C. 4.5 km/hr 53.13°
B. 8.5 km/hr @ 54.14
D. 6.5 km/hr @ 54.14°
A. 7.5 km/hr @ 53.13°
A right triangle whose length of sides may be expressed as ratio of integral units.
A. Pedal triangle
C Scalene triangle
D. Primitive triangle
B. Isosceles triangle
D. Primitive triangle
An angular unit equivalent to 1/4000 of the
circumference of a circle is called
A. Mil
B. degree
C. radian
D. grad
D. grad
