Question

The shaded region shows a running track
surrounding a field. Using pie= 3.142 and
giving your answer correct to 3 significant
figures, find the area of the shaded region if
the track has a width of 4 m.​

Answer 1

Answer:

Subtracting a fraction from a whole

Rewrite the whole as a fraction using t2 as the denominator :

t t • t2

t = — = ——————

1 t2

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator.