Answer:
Step-by-step explanation:
Volume of a cone:
Take 
as 3, as mentioned in the question
'r' is 'radius' ⇒ {diameter is given so divide by 2: 12/2 = 6}
'h' is 'height'
{multiply 108 with 5 and then divide the answer by 3}
× 
Answer:b is 16
Step-by-step explanation:a is 15 and c is 17. So what comes in between those numbers, exactly 16
Answer:
Theta has a reference angle of 30° and is in Quadrant I or II
Step-by-step explanation:
Sin(theta) = ½
Basic angle: 30
Angles:
30,
180-30 = 150
Because sin is positive in quadrants 1 and 2
The ar. of square =X^
=5.76
So,X=√5.76
=2.4
now, perimeter of square =4(X)
=4(2.4)
=9.6
So, the perimeter of the square is 9.6cm..
Thanks!
Hope it helps you..
