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Sunday 18 March 2012

07. Test Bite


By now you should be finishing Task 1 & Task 2 in your school…


Now let’s try to do the following "Test Bite"...
 





Circumference of a circle...


1.
In the calculations below, use \pi = 3.14 .
Work out the circumference of this circle. Give the answer to 1 decimal place.
A circle with a 10 centimetre diameter.
cm
2.
Work out the circumference of this circle. Give the answer to 2 d.p.
A circle with a 2 centimetre radius.
cm
3.
Work out the circumference of this circle. Give the answer to 2 d.p.
A circle with a 4 centimetre radius.
cm 2
4.
Work out the circumference of this circle. Give the answer to 2 d.p.
A circle with an 18 centimetre diameter.
cm 2
5.
Work out the perimeter of this semicircle. Give the answer to 2 d.p.
A semicircle with a 12 centimetre diameter.
cm
6.
Work out the perimeter of this semicircle. Give the answer to 4 d.p.
A semicircle with a 1.4 metre diameter.
m 2
7.
Work out the perimeter of this shape. Give the answer to 2 d.p.
A rectangle, of length 15 metres and width 12 metres, with a semicircle joined on one width edge by its straight edge.
m 2
8.
Work out the perimeter of this shape. Give the answer to 2 d.p.
A rectangle, with a length of 12 centimetres and width of 2 centimetres, with a semicircle joined onto one of the length edges by its straight edge.
cm
9.
Helen's kitchen window is in the shape of a rectangle with a semicircle at the top. What is the total perimeter of the window? Give the answer to 4 d.p.
A rectangle with a semi-circle joined on to one of the width edges of the rectangle, by it's straight edge. The rectangle's length is 1.8 metres, and its width is 1.2 metres.
m 2
10.
A running track is marked as shown. The straight part of the track is 100m long and the width across the track is 62m. The ends of the track are semicircular.

A running track shape, composed of two semicircles joined onto the width edges of a rectangle. The rectangle is 100 metres in length and 62 metres in width.

Calculate the perimeter of the inside of the track. Give the answer to 2 d.p.

m


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