Me i cant get this i. honestly just need someone to give the answers for this lesson

Area of the triangle = (1/2)*base* height = (1/2)*3*6 = 9 sm²
We have 4 triangles like this one ,
so area of 4 triangles  = 9*4 = 36 cm².
Area of the square = 3*3 = 9 cm²

Surface area here means area all triangles  + area of the square =36 +9 =
= 45 cm ²

Answer is 45 cm².

82 + 28 + 52 + 33 + 29 = 224 divided by 16 = 14

PLEASE MARK BRAINLIEST