|
Q1:
|
Given three sides of a non-right-angled triangle, which of the following would you use to find one of the angles? |
A. Sine Rule
B. Cosine Rule
C. Area Formula
D. Laws of Indices |
Answer 1:
|
|
|
Q2:
|
Fred is using the cosine rule to find an angle P.
He writes 36 = 296 - 280cosP
A correct statement that follows this is: |
A. 332 = 280cosP
B. 260 = -280cosP
C. 36 = 16cosP
D. -260 = -280cosP |
Answer 2:
|
|
|
Q3:
|
The value of sin C is:
|
A 56 sin 20°
B. 
C. 
D.  |
Answer 3:
|
|
|
Q4:
|
The best expression to use to find the length of side BC is |
A. 
B. 
C.
D.  |
Answer 4:
|
|
|
Q5:
|
In using the Cosine Rule, a student wrote x2= 36 + 49 - 84cos 40°
The statement that follows from this is:
|
A. x2 = 36 - 35cos40°
B. x2 = 85 - 84cos40°
C. x2 = 1cos40°
D. x2 = 6+7 - 9.2cos40° |
Answer 5:
|
|
|
Q6:
|
If x = 
find x (to 2 s.f.) |
A. 1.8
B. 1.83
C. 1.4
D. 3.3 |
Answer 6:
|
|
|
Q7:
|
A line in a calculation using the Cosine Rule is cosA =
What is the size of angle A (to 1 d.p.)? |
A. 64.3°
B. 28.8°
C. 25.7°
D. 61.2° |
Answer 7:
|
|
|
Q8:
|
If x2 = 36 - 35cos 35°, what is x? (to 2 sig.fig.) |
A. 2.7
B. 0.82
C. 7.3
D. 54 |
Answer 8:
|
|
|
Q9:
|
Find the square root of 105 to 3 significant figures. |
A. 10.2
B. 10.25
C. 10
D. 11025 |
Answer 9:
|
|
|
Q10:
|
Which of the following would you use to find the length of DG?
|
A.Sine Rule
B.Cosine Rule
C.Pythagoras' Theorem
D.Area Formula |
Answer 10:
|
|
