Question

Work out the surface area.​

Answer 1

SA = 120 m2

Explanation:

one 9×5 rectangle = 45 m2
one 4×9 rectangle = 36 m2
one 9×3 rectangle = 27 m2

two (4×3)/2 triangles = 6 + 6 = 12 m2

Add the areas:

surface area = 45 + 36 + 27 +12 = 120 square meters

Hope this helps

Answer 2

The surface area (SA) of the given triangular prism is 120m.

Explanation:

Greetings !

B/c, SA=bh+(b₁+b₂+b₃)l

• SA=4(3)+(4+3+5)9
• SA=12+(12)9
• SA=12+108
• SA=120m