Trigonometry Check-In

1. 1. Find the size of angle x.

Mathematical Equivalence

ON

2.     Find the smallest angle in a triangle whose sides have length 4 cm, 11 cm and 12 cm.

Mathematical Equivalence

ON

3. 3. In triangle ABC, BC = 8 cm, AC = 3 cm and angle ABC = 12^o. Find the possible measures of angle BAC.

For the Quizizz, just type the LARGER of the two angles....

Mathematical Equivalence

OFF

4.         (a)        Find AC.   

Mathematical Equivalence

ON

           4. (b)       Find angle ACB

Mathematical Equivalence

ON

4. 4. (c) Find the area of quadrilateral ABCD.

Mathematical Equivalence

ON

5.     A triangular cross-country running track begins with the runners running for 2050 m on a bearing of 340^o.  The runners then turn right and run for 5200 m on a bearing of 085^o.  Finally, the runners turn right again and run directly back to the starting point.

 

Find the length of the final leg of the run.

For the Quizzes, you must express your answer using 3 Significant Figures!

Mathematical Equivalence

ON

6. (a) Rex is standing on a slope which is inclined at 15to the horizontal.  He puts up a vertical pole PQ of      height 3.4 m.  A gale wind is blowing so he secures the pole by tying a rope from Q to a peg at R.  The   distance from the foot of the pole to the peg is 2.5 m. 

Find: angle QPR

Mathematical Equivalence

ON

6. (b) Rex is standing on a slope which is inclined at 15to the horizontal.  He puts up a vertical pole PQ of      height 3.4 m.  A gale wind is blowing so he secures the pole by tying a rope from Q to a peg at R.  The   distance from the foot of the pole to the peg is 2.5 m. 

Find: the length of QR

Mathematical Equivalence

ON

7.    Donna walks up the steepest straight path on a hillside, AD, which is inclined at 23° to the horizontal.  Martin also walks along a straight path up the hillside, AM, but his path is inclined at an angle of 17°. 

Find the angle between their two paths.

Mathematical Equivalence

ON