Question

7:324 Surface Area of Triang Acellus Using the net below, find the surface are of the triangular prism. 5 cm 4 cm 8 cm 8 cm 6 cm 4 cm 5 cm 5 cm Surface Area = [?] cm2

Answer 1

Here we can consider 2 triangle heaving b= 4, h= 5

A1 = 2* (b*h/2)

A1 = b*h = 4*5

A1= 20 cm2

Next we can consider the rectangular part as complete one reactangle of dimension:

L= (6+4+5)=15cm

B= 8 cm

A2= L*B

A2= 15*8

A2= 120 cm2

Total area = 120+20 = 140cm2