2.) What is the surface area of this triangular right prism?

228

Step-by-step explanation:

first we will find the area of the triangles on the sides of the prism.

(triangle area formula: (b*h)/2)

(6*5)/2 = 15

we multiply this by 2 since there are 2 sides that contain the same measures:

15*2 = 30

then we find the rectangles that are on the sides (not the base)

(rectangle formula: b*h)

11*6.5 = 71.5

multiply this by 2 since there are two sides:

71.5*2 = 143

finally we find the base using the same formula as we did to find the rectangles:

11*5 = 55

finally we add them all up:

30+143+55 = 228

hope this helps! :)

none cuz there are no "following statements" regarding the question

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.