What is the area of a triangle with vertices at (0, −2), (8, −2) , and (9, 1) ?

A=1/2*(8)*(3)

A=12

Description:

The area of a triangle is A=1/2*b*h

Meaning the area of the triangle is 12.

A=1/2*(8)*(3)

A=12

Please mark brainliest

Hope this helps.

step-by-step explanation:

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