Question

I neeeeed helppppppp pleaeeeeeeeeeee

Answer 1

Answer: Option C.

Step-by-step explanation:

The surface area of the right triangular will be the sum of all its faces.

You can observe in the figure that the faces of the right triangular prism are: Two equal right triangles and three different rectangles.

The formula for calculate the area of a triangle is:

  $A=\frac{bh}{2}$

Where "b" is the base and "h" is the height.

The formula for calculate the area of a rectangle is:

  $A=lw$

Where "l" is the length and "w" is the width.

Then, the surface area of the right triangular prism is:

$SA=\frac{ba}{2}+\frac{ba}{2}+dc+db+da\\\\SA=2(\frac{ba}{2})+d(c+b+a)\\\\SA=2(\frac{4cm*3cm}{y})+8cm(5cm+4cm+3cm)\\\\SA=108cm^2$

Answer 2

Answer:

its c

Step-by-step explanation: