1.AREA & PERIMETER WEEK6 - pitlochryps.co.za€¦ · WEEK6 Created by Miss Ankiah Pitlochry Primary...
Transcript of 1.AREA & PERIMETER WEEK6 - pitlochryps.co.za€¦ · WEEK6 Created by Miss Ankiah Pitlochry Primary...
1 . A R E A & P E R I M ET E RW E E K 6
Created by Miss Ankiah Pitlochry Primary School
GRADE 7 TERM 2
MATHEMATICS
PITLOCHRY
PRIMARY SCHOOL
Created by Miss Ankiah, Pitlochry Primary school 3
Dear Grade 7s
I know its been a tough, long and boring
lockdown. But with these online lessons and help
from your parents we can make it through this
and still have our education. Please try to think
happy thoughts and know that each and
everyone of you will make it to grade 8 if you
have faith in yourself and still focus in your
education in this difficult time.
We are now onto week 6 of our Spot on Text
Book please also go through pages 133-37 of
your textbook for additional reading.
Keep your eye on the School website for when
new work will be uploaded.
Miss Ankiah
RECTANGLES
Created by Miss Ankiah Pitlochry Primary School
HOW TO USE THESE ONLINE NOTES?
• There are 4 sections that will be covered in fractions, we do 4 lessons of one hour each and one lesson of 30 min in a week. That gives you a total of 4.5 hours to complete this section of work for the week.
• Please assign 1 hour per section excluding the revision examples. Use the 30 min or more if you want, to do the revision exercises.
• You will ONLY get SOLUTIONS once I see that you have completed all the exercises!!!!! In the mean time you can use a calculator at home to check your final answers.
• If you are struggling refer to your school textbooks for extra information or various websites such as:
• www.mathsisfun.com
GOOD LUCK AND ENJOY!
Created by Selene Ankiah, Megatude Education 5
PERIMETER & AREA
What Perimeter?
• The perimeter of
a shape is the
total length of its
sides added
together
What is Area?• Area measures the
surface of something,
usually in square metres
(𝑚2), square centimetres
(𝑐𝑚2) or square
millimetres (𝑚𝑚2).
Created by Miss Ankiah Pitlochry Primary School
PERIMETER OF A RECTANGLE
Example:The perimeter of this
rectangular lawn = 5 + 3 + 5 + 3 = 16 m
Created by Miss Ankiah Pitlochry Primary School
AREA OF A RECTANGLE
Example: The area of this lawn is= 5m x 3m = 15𝑚2
GENERAL FORMULAS USEDWHEN CALCULATING AREA AND
PERIMETER OF RECTANGLES
•Perimeter of a rectangle = length + width + length +
width or (length + width) × 2
•Area of a rectangle = length × width
Created by Miss Ankiah Pitlochry Primary School
Sometimes shapes are made from two or more rectangles
Example of perimeter
The diagram below shows an L-shaped floor.
The perimeter of the floor = 3 + 1.5 + 2.2 + 3 + 5.2 + 4.5 = 19.4 m
Created by Miss Ankiah Pitlochry Primary School
Sometimes shapes are made from two or more rectangles
Example of area
The diagram on the right shows an L-shaped floor.
How could you find the area of this floor?
The area can be split into two rectangles, A and B.
Area of A = 4.5 × 3 = 13.5 𝑚2
Area of B = 3 × 2.2 = 6.6 𝑚2
Total area = 13.5 + 6.6 = 20.1 𝑚2
Created by Miss Ankiah Pitlochry Primary School
PLEASE DO THEACTIVITES IN THENEXT FEW SLIDES
Created by Miss Ankiah Pitlochry Primary School
Created by Miss Ankiah Pitlochry Primary School
Created by Miss Ankiah Pitlochry Primary School
Created by Miss Ankiah Pitlochry Primary School
Created by Miss Ankiah Pitlochry Primary School
THANK YOU!
TRIANGLES WILL
BE NEXT WEEK!
☺
Created by Miss Ankiah Pitlochry Primary School