A rectangular lawn is 2 m longer than it is wide. The area of the lawn is 21 m². The gardener wants to edge the lawn with edging strips
which are sold in lengths of 13 m. How many will she need to buy?

Let's breadth be x

ATQ

Now

Total strips

• width is y metres

• length is (2 + y) metres

• Therefore, length = 4 + 2 = 6 meters

• The gardener will need;

answer: 20

step-by-step explanation:

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3