i proctored a geometry 1 exam today

here are three questions at random. answer in the comments. no binging.

1.) a cylinder has a height of 16 inches and a diameter of 12 inches. find the surface area. use pi and round to the nearest tenth?
a.) 2486.9
b.) 2110.1
c.) 829.0
d.) 527.5
e.) 157.75

2.) the hypotenuse of an isosceles right triangle is 6 feet. to the nearest tenth, what is the length of each other leg of the triangle?
a.) 4.2
b.) 6.0
c.) 8.5
d.) 9.0
e.) 9.2

3.) angle A is an acute angle in right triangle ABC. if m∠A = 30 degrees, which of the following has a value of 1/2?
a.) sin A
b.) cos A
c.) sin B
d.) tan B
e.) cos B