Answer :
Answer:
1161.55
Step-by-step explanation:
use cosine rule to get the angle of one side,then use 1/2times side times side time the sine of the angle in between inorder to get area of one side then multiply by 3-total S.A
Answer:
1161.55
Step-by-step explanation:
use cosine rule to get the angle of one side,then use 1/2times side times side time the sine of the angle in between inorder to get area of one side then multiply by 3-total S.A