Question

7. In Fig. 13.32, circles are concentric with centre 0.
Find AC.
L
A
D
|9cm
B
17cm
cd
n
5)
10cm
O
10
y.
Fig. 13.32​

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