Question

find the area of a triangle ABC if angle A is 60 and angel B is 30 and AC is 4​

Answer 1

Answer:

8✓3

Step-by-step explanation:∆ABC A=60 B=30 then angleC =180-60-30=90

From that sinB=4/x

1/2=4/X

X=8

For right angle triangle

8^2=4^2+y^2

64-16=y^2

Y=4√3

Area=1/2×4×4√3

=8√3

Answer 2

Answer:

Step-by-step explanation:

Construct triangle ABC.

Then find the altityde by trignometric ratio tan60=root3.

Then apply the formula area of triangle is the half of the product of base and altitude

A= ½×4×4root3

A=8root3 units...