Answer:
a = 2 √13 cm
Step-by-step explanation:
Here, we want to find the length of BC
To do this, we can use the cosine rule
Thus;
a^2 = b^2 + c^2 - 2BC cos A
= 8^2 + 6^2 - 2(8)(6) cos 60
Mathematically cos 60 = 1/2
= 64 + 36 - 48 = 52
a^2 = √52
a = 2 √13 cm
