Answer:
r = 2cm
h= 18cm
surface area of cylinder = 2πr ( r + h)
= 2*22/7*2(2+18)
= 125.714cm²
volume of cylinder = πr²h
22/7*(2)²*18
=226.29cm³
I think the second i didnt make it on paper but its the one that more convence me
The lengths of the sides of the triangle:
No sides are equal to each other, so it's a scalene triangle.
Check if the sides satisfy the Pythagorean theorem:
They do, so it's a right triangle.
The triangle is a
right scalene triangle.