CSEC MCQ Trigonometry

A boat was travelling on a bearing of 270⁰. In what direction was it travelling?

• East

• West

• North

• South

If the sum of the interior angles of a polygon is 4 right angles, then the polygon is a?

• triangle

• hexagon

• pentagon

• quadrilateral

A boy stands 12 m from the foot of a building and observes the angle of elevation at the top of the building, (as shown in the diagram above. The approximate height of the building is?

• $12\ \tan40\degree$

• $1.6+12\ \sin40\degree$

• $1.6+12\ \cos\ 40\degree$

• $1.6+12\ \tan40\degree$

In the isosceles triangle above, the value of x is

• $40\degree$

• $80\degree$

• $100\degree$

• $140\degree$

The diagram above refers to the question below. With centre A, an arc BC is drawn. With centre B, the same radius, the arc PQ is drawn. What is the measure of <BAC?

• $30\degree$

• $45\degree$

• $60\degree$

• $75\degree$

 $In\ a\ triangle\ ABC,\ angle\ A=x\degree,\ and\ angle\ B=2x\degree.\ What\ is\ the\ size\ of\ angle\ C?$  

•  $45\degree$  

•  $60\degree$  

•  $\left(\frac{180}{3x}\right)\degree$  

•  $\left(180-3x\right)\degree$  

in the diagram above AB and CD are parallel. Which of the following best describes the relationship between x and y?

• $x=y$

• $x>y$

• $x+y>2x$

• $x+y<2x$

In the triangle above the value of x is?

• $30\degree$

• $60\degree$

• $120\degree$

• $150\degree$

A plane is flying in a direction of 045⁰ and changes course in a clockwise direction to 135⁰. the angle through which the plane turns is?

• $45\degree$

• $90\degree$

• $135\degree$

• $270\degree$

Which of the following statements best describe an equilateral triangle?

i. all sides are equal

ii. all angles are equal

iii. two sides are equal

iv. two angles are equal

• i and ii only

• ii and iii only

• iii only

• iv only