30 POINTS WILL GIVE BRAINLIEST !!

c

Step-by-step explanation:

4*4=16

4*8=32

4*8=32

16+32+32=80

80*2=160

Option c is 160

160 cm^2 is the total surface area

Step-by-step explanation:

I see 2 identical sides, a top and bottom of the same size, and a front and back of the same size.  So, to find the total surface area, we find the individual area of one side, one top and one front, add them together and multiply the sum by 2:

front:  (4 cm)(8 cm) = 32 cm^2

side:   (4 cm)(8 cm) = 32 cm^2

top:     (4 cm)(4 cm) = 16 cm^2

Sum:                           80 cm^2

Multiply this by 2:       160 cm^2 is the total surface area.

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.