Question

ab is 3
angle a is 60
angle c is 30

In the figure, AB = 3. Find BC, AC​

Answer 1

Step-by-step explanation:

We can apply the cosine formula

a^2 = b^2 + c^2 - 2bc cos C

= 4^2+3^2–2*4*3*cos 60

= 4^2+3^2–2*4*3*0.5

= 16+9–12

= 13

BC = a = 13^0.5 = 3.605551275 cm

hope this will help u : )