Wednesday, November 21, 2012

Textbook Page 79 Question 16

Page 16.


a) The label on a 1-L can of paint states that the paint will cover an area of 10m squared. What is the side length of the largest square area that the paint will cover? Express your answer to the nearest hundreth of a metre.

 
 
The side length of the area that the paint will cover is 3.16 metres.
 
 
b) What is the side length of the largest square area that a 3.79-L can of the same paint will cover? Express your answer to the nearest hundreth of a metre.
 
 
 
 
 
 
 
 
 
 
 
 
The side length that a 3.79-L can of paint can cover is 6.16 metres.
 
 
c) Nadia is applying two coats of the paint to an area that is 4.6m by 4.6m. How much paint will she use if she applies the same amount of paint for each coat? Express your answer to the nearest tenth of litre. (SORRY ABOUT THE NECK BREAKER)
 
 
 
 
 
 
 
 
 
She will need 4.2 litres of paint for the two coats.
 
 

No comments:

Post a Comment