Mathematics: I need help explain plz

I need help explain plz - id8513794, MarishaTucker

jeffrey74081

22.02.2022

$1.79\ m^{2}$

Step-by-step explanation:

we know that

The surface area of the triangular prism is equal to

SA=2B+PL

where

B is the area of the triangular base

P is the perimeter of the triangular base

L is the length of the prism

Find the area of the triangular base B

$B=\frac{1}{2}(0.8)(0.1)=0.04\ m^{2}$

Find the perimeter of the triangular base P

$P=(0.8+0.1+0.81)=1.71\ m$

we have

$L=1\ m$

substitute the values and find the surface area

$SA=2(0.04)+(1.71)*(1)=1.79\ m^{2}$

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