suppose a triangle has sides a, b, and c, and let be the angle opposite the side of length a. if cos > 0, what must be true? a. b2 + c2 > a2b. a2 + b2 > c2c. b2 + c2 < a2d. a2 + b2 = c2

i need a picture

step-by-step explanation:

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11-1 > 1-1+a

-12 > a

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a