Unit Conversion
How many mm in 1 cm?
10mm
Calculate the area of a rectangle with a length of 12cm and a width of 8cm
96cm2
Calculate the volume of a rectangular prism with a length of 10cm, a width of 8cm and a height of 6cm.
480cm3
Draw the top view of the shape on the PPT
Miss Beavan to draw on board
Does the image on the PPT make a cube?
Yes
42 cm
Calculate the area of a triangle with a base of 6m and a height of 9m
27m2
Calculate the volume of the triangular prism pictured on the powerpoint slide...
180cm3
Draw the right view of the shape on the PPT
Miss Beavan to draw on board.
Does the image on the PPT make a cube?
No
What is the correct unit if I used a ruler to measure the perimeter of my pencil case?
cm
Calculate the area of a parallelogram with a base of 14m and a height of 2m
28m2
Calculate the volume of a rectangular prism with a length of 112cm, a width of 80mm, and a height of 45cm.
40320cm3
Or
40320000mm3
Draw the front view of the following shape with measurements
Miss Beavan to draw on board
Does the image on the PPT make a cube? If not - why?
No - one of the left squares will overlap another leaving a gap
What is the correct unit if I used my ruler to measure the area of a stamp?
mm2
Calculate the area of a triangle with a base of 9mm and a height of 8cm
360mm2
or
3.6cm2
Calculate the volume of a tent with a pitch height of 80cm, a base length of 1m, and a tent length of 1.8m.
720000cm3
or
0.72m3
What are the advantages and disadvantages of the 2D drawings of the shape on the PPT
Advantages: Can see the area the shape takes up in the top view.
Disadvantages: Can't see how high the shape is in the top view. Doesn't include depth of shape or that roof is slanted.
Will the image on the PPT make a cube? If not - why?
Yes
Determine the volume of concrete (in cubic metres) that would be needed to make the base for a garage that is 6.5 m wide and 3 m long. The concrete base is 250mm deep.
If concrete costs $12/m3, how much would the garage floor cost?
4.875m3
$58.50
Calculate the area of a parallelogram that has a base of 0.12m and a height of 63cm
756cm2
or
0.0756m2
Miss Beavan and Mr Stewart-Cook calculated the working out for the shape pictured on the PPT. Which teacher made a mistake and explain why.
Mr Stewart-Cook is correct as he has found the area of the triangular face first then multiplied it by the prism length. Miss Beavan found the area of the rectangle which is not the cross-section shape.
What are the advantages and disadvantages of the 3D drawings of the shape on the PPT
Advantages: Can see depth and slants on the sides.
Disadvantages: Can't see how much area is taken up the back view
Will the image on the PPt make a cube? If not - why?