Tigers

__**STUDENT NAMES: Vincent Restifo, Kalon Ford, Kempton Sing **__

In groups, solve the following questions. Each question has a link which will show a diagram containing the problem. Type your working out and answers in the space provided below each question on this (wiki) page. NOTE: working out must be provided (as well as answers) to be awarded full marks

__**QUESTION 1**__

Divide the shape into rectangles and use the 'area' rule to find the total area of the object

Object A: 21x12=252km2

Object B 11x13=143km2

Object C 5x7=35km2

=430km2



__**QUESTION 2**__

Find the area of the shaded and non shaded parts in the following shape

Unshaded

23x13=299m2

Shaded 26x17=442m2 442-299=143m2



__**QUESTION 3**__

Bill is about to tile an external wall with tiles that are 20cm long and 10cm wide.

a. How many tiles will be needed if the wall measures 2.4m by 6.2m? 20x10=200sqcm 240x620=148800sqcm/200sqcm=744 tiles

b. If the tiles are sold in boxes of twenty, how many boxes should he buy? 744/20=37.2=38 boxes

After checking the tiles Bill finds that 10% of the tiles have cracks and can not be used

c. How many boxes of tiles should he order now?

<span style="font-family: 'Comic Sans MS',cursive; font-size: 120%;">d. How many tiles will he have left over?

<span style="font-family: 'Comic Sans MS',cursive; font-size: 120%;">Bill now tiles a neighbour's wall, which includes a door as shown in Picture 3.



<span style="font-family: 'Comic Sans MS',cursive; font-size: 120%;">He uses 20cm by 40cm tiles. <span style="font-family: 'Comic Sans MS',cursive; font-size: 120%;">e. Find the number of tiles needed to complete the job?