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If X = 7 units, Y = 11 units, Z = 14, and H = 4 units, what is the surface area of the triangular prism ?

If X 7 Units Y 11 Units Z 14 And H 4 Units What Is The Surface Area Of The Triangular Prism class=

Sagot :

we know that

The surface area of a triangular prism is equal to

SA=2B+PL

where

B is the area of the triangular face

P is the perimeter of the triangular face

L is the length of the prism

step 1

Find the area B

B=(1/2)*y*h

substitute the given values

B=(1/2)*11*4

B=22 units^2

step 2

Find teh value of P

P=X+X+y

substitute the given values

P=7+7+11

P=25 units

step 3

Find the surface area

SA=2*22+25*14

SA=394 units^2