 # WAEC REVISION – Trigonometry TRIG

### Improve Competency with MyMathsHero

A coordinate geometry is a branch of geometry where the position of the points on the plane is defined with the help of an ordered pair of numbers also known as coordinates. Consider the grid, where the columns of the grid are lettered A, B, C etc and the rows are numbered 1,2,3 etc from the top. We can say that the X is in box D3; that is, column D, row 3. D and 3 are called the coordinates of the box. It has two parts: the row and the column. There are many boxes in each row and many boxes in each column. But by having both we can find one single box, where the row and column intersect.

In this topic, we cover the following: The straight line, distance between two points, mid-point of a line and angles between lines. At the end of this topic, students should understand the following among other things:

• Understand various forms of the general equation of a straight line,
• Understand various forms of the equations of lines that are parallel to the Cartesian axes,
• Be able to use various expressions for the gradient of a straight line,
• Able to find the intercepts that a line makes with the x- and y- axes and use them to draw the line,
• Find the distance between two points and also find the coordinates of the midpoint of a straight line joining two points on the Cartesians plane,
• Calculate the angle between two lines on the Cartesian plane and be able to use the conditions for two lines to be ‘a ‘parallel, ‘b’ perpendicular.
1
SS3-WAEC REVISION 2- LESSON 2A-SINE RULE, BEARING & DISTANCE
32 Minutes
2
SS3-WAEC REVISION 2- LESSON 2B-SINE RULE, BEARING & DISTANCE
15 Minutes
3
SS3-WAEC REVISION 5- LESSON 1A-COSINE RULE
21 Minutes
4
SS3-WAEC REVISION 5- LESSON 1B-COSINE RULE
18 Minutes
5
SS3-WAEC REVISION 6- LESSON 1A-TRIGONOMETRIC RATIOS
21 Minutes
6
SS3-WAEC REVISION 6- LESSON 1B-TRIGONOMETRIC RATIOS
15 Minutes
7
SS3-WAEC REVISION 8- LESSON 2A-TRIGONOMETRY RATIOS
23 Minutes
8
SS3-WAEC REVISION 8- LESSON 2B-TRIGONOMETRY RATIOS
16 Minutes

### REVISION LESSON-SOLVED EXAM QUESTIONS

1
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 1
1 Minute
2
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 2
1 Minute
3
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 3
3 Minutes
4
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 4
1 Minute
5
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 5
1 Minute
6
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 6
1 Minute
7
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 7
1 Minutes
8
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 8
1 Minute
9
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 9
2 Minutes
10
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 10
3 Minutes
11
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 11
2 Minutes
12
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 12
1 Minute
13
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 13
3 Minutes
14
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 14
2 Minutes
15
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 15
4 Minutes
16
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 16
2 Minutes
17
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 17
10 Minutes
18
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 18
1 Minute
19
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 19
3 Minutes
20
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 20
21
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 22
3 Minutes
22
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 23
2 Minutes
23
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 24
1 Minute
24
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 26
2 Minutes
25
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 27
2 Minutes
26
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 28
3 Minutes
27
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 29
1 Minute
28
TRIGONOMETRY -(SINE, COSINE & PYTHAGORAS )- OBJ QUEST 30
1 Minute