Scalene: all sides, all angles are different

Isosceles: 2 sides, 2 angles the same

Equilateral: all sides, all angles the same

An example of finding the area of a triangle:

For example: 2(5+x)= 2(5) + 2(x)

= 10 + 2x

A common mistake is adding or subtracting 10 by 2x because they are unlike terms.

A new diagram for finding the answer of 2(5+x) is:

Inside the box, the top part is the expression and the bottom part is the answer.

Another example is: 2x(3x^2 + 4x -y)

=6x^3 + 8x^2 - 2xy

HOMEWORK

- read page 264-268

-CYU: #2, 3

-Practise: odd/even

-Apply: all

-2 of 3 extend

-7.2 homework book

-Green sheet:7-4

The next person doing the blog is Brandon Arano.

Great Post Ryan. You showed how you got the answers.

ReplyDeleteAlthough next time maybe you should steps on the other ones and the square diagram is called Area model.