Question 12

Sarah has a vegetable garden in the shape of a right triangle. She wants to put fencing around it to keep the rabbits away.

a) What total length of fencing does she need? Give your answer to the nearest hundredth of a metre.

c2- b2=a2

42-32 =a2

16-9=a2

7=a2

the square root of 7 is 2.6 which equals a2.

Sarah would need 9.6m of fencing.

b) If fencing costs $2/m, what would be the total cost of the fencing?

The fencing would cost $19.20, I got this answer by multiplying 9.6m by 2.

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