Answer:
a) BC = 9.75m
b) length of the fence = 33.5m
Step-by-step explanation:
a) Theorem's pythagoras
BD^2 = BC^2 + CD^2
12^2 = BC^2 + 7^2
BC = √(12^2+7^2)
BC = √95
BC = 9.75
Answer - BC = 9.75m
b) Length of the fence;-
AB+BC+CD+AD
7+9.75+7+9.75
= 33.5m
Answer - Length of the fence = 33.5m
