MATHEMATICS/G12 NSC
MARCH 2021
QUESTION1
A group of workers is erecting a fence around a nature reserve. They store their tools in a shed at
the entrance to the reserve. Each day they collect their tools and erect 0,8km of new fence. They
then lock up their tools in the shed and return the next day,
1.1 If the fence takes 40 days to erect, how far would the workers have travelled in total?
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step-by-step explanation:

start with a line segment pq that we will copy. mark a point r that will be one endpoint of the new line segment. set the compasses' point on the point p of the line segment to be copied. adjust the compasses' width to the point q. the compasses' width is now equal to the length of the line segment pq.

step-by-step explanation:

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm