This mathematics document covers calculating perimeters and areas of different shapes. It discusses finding the perimeter and area of rectangles, as well as the areas of triangles, parallelograms, and trapezoids. Various formulas are presented and examples are worked through on how to calculate the heights, bases, and areas of these shapes. Problem solving questions involving perimeters and areas are also addressed.

1. MATHEMATICS - FORM 1
PERIMETER AND AREA
PERIMETER
A) Identifying the Perimeter of a Region

2. B) Finding the Perimeter of a Region
Enclosed by Straight Lines

3. C) Problem Solving involving Perimeters

4. AREAS OF RECTANGLES
A) Astimating the Area of a Shape

5. Solution

6. B) Finding the Area of a Rectangle
C) Calculating the Area of a Rectangle

8. Solution

9. D) Calculating the Area of a right-angled
Triangle as Half of the Area of Rectangle

10. D) Finding the Area of shape involving a
Rectangles and Right-angled Triangles
Solution

11. Worked Example 9
AREAS OF TRIANGLES,
PARALLELOGRAMS AND TRAPEZIUMS
A) Identifying the Heights of Triangles,
Parallelograms And Trapezium

12. (b) Parallelograms
(c) Trapezium

13. B) Forming the Formulae to find the Areas of
Triangles, Parallelograms and Trapeziums
(a) (b)
Solution

15. Solution

17. Solution
(a)

18. (b)

19. C) Calculating the Areas of Triangles,
Parallelograms and Trapeziums

20. D) Finding the Height or Base of a Triangle,
Parallelogram or Trapezium

25. E) Finding the Areas of a Figure
made up of Different Shapes

26. F) Finding the Areas of Shaded Parts

27. G) Problem Solving involving the Areas of
Triangles, Parallelograms and Trapreziums