30: x
60: xsqrt3
90: 2x (hypotenuse)
Answer:
25.12cm
Step-by-step explanation:
So we first find the area of the circle on top:
area= 
or 3.14 x 
which equals 12.56
Then we multiply it by 2:
12.57 x 2 = 25.12
So the lateral surface area is 25.12cm
Its D because if you plug in each # with x it will give you the output which is y.
Answer: B
Step-by-step explanation:
It already is in standard form.
Here is the answer in the picture.