Factorisation is basically where you have to find everything in common between 2, 3 or 4 terms.
In factorization, you take out the like-terms. eg.
12x-6y
6(2x-y)
We have to find the HCF of 6 and 12 which is 6.
Here, the 6 is common (goes outside the bracket) and the other numbers (which are in the bracket) are uncommon.
Always remember in factorisation that:
+ and + = –
– and – = +
– and + = –
+ and – = –
Answer:
The kind of angle formed by perpendicular lines is 90°
Step-by-step explanation:
If two lines are perpendicular, to each other, then they meet at rightangles.
This means that, the measure of the angle between them is 90°.
Therefore, the kind of angle formed by perpendicular lines is 90°
Divide the area with the length ( 9 feet long)
Area: 63/9
= 7 feet long
7*9=63 ft 2
Answer: 7 feet long