A = side^2 * (2 + 2sqrt2))
A = 4^2 * (2 + 2sqrt2))
A = 77.25 cm^2
Answer:
Use the SINE COSINE and the TANGENT rule
Step-by-step explanation:
1.1st use the Pythagoras theorem to find the value of the other side
2.Now be comfortable to use the rule............................
Answer:
the line perpendicular: x=-3
Step-by-step explanation:
I’m not sure but i think 66 hours because both pumps must fill half of the pool which would split the timing for each which would make pump 1 take 36 hours to fill half and pump two take 30 hours to fill the rest. when you add these hours it equals 66. i hope i helped :)
The double angle formula for the sine is
The right hand side is exactly your expression, where 
So, rewriting the expression from right to left, we have
