7.5 Devide 30 by 4 and it is 7.5 that is how much she saved
Step-by-step explanation:
LHS=(1-sin60)/cos60
=(1-√3÷2)/1÷2
=2(1-√3÷2)
=2-√3
RHS=(1-tan30)/(1+tan30)
={1-(1÷√3)}/{1+(1÷√3)}
={(√3-1)/√3}/{(√3+1)/√3}
=(√3-1)/(√3+1)
={(√3-1)(√3-1)}/{(√3+1)(√3-1)}
=(3-√3-√3+1)/(3-1)
=(4-2√3)/2
=2-√3
Therefore LHS=RHS
The answer will be C. I hope this helped you! ^^
Answer:
diameter=14
radius =14/2=7
area =πr²
hope it helps
<h3>stay safe healthy and happy.</h3>
