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PLEASE HELP/ WILL MARK BRAINLIEST

Find the surface area of the triangular prism.


PLEASE HELP WILL MARK BRAINLIEST Find The Surface Area Of The Triangular Prism class=
PLEASE HELP WILL MARK BRAINLIEST Find The Surface Area Of The Triangular Prism class=

Sagot :

Answer:

Triangular prism 1:    132

Triangular prism 2:   828

Step-by-step explanation:

1) triangle+triangle+rectangle+rectangle+rectangle

A of triangle=3*4 divided by 2

12/2= 6

since there are 2 triangles we do 6*2= 12

A of rectangle 1= 10*5= 50

A of rectangle 2= 10*4= 40

A of rectangle 3= 10*3= 30

so SA of whole figure is 12+50+40+30= 132

2) triangle+triangle+rectangle+rectangle+rectangle

A of triangle=9*12 divided by 2

108/2=54

since there are 2 triangles we do 54*2=108

A of rectangle 1= 9*20=180

A of rectangle 2= 15*20=300

A of rectangle 3= 12*20= 240

so SA of whole figure is 108+180+300+240=828

Please mark brainliest :)

Thank you

THE FIRST TRIANGLE ANSWER IS 135
THE SECOND TRIANGLE ANSWER IS 20