Question

Anyone can answer this ?

Answer 1

Answer:

NOT nets = A, C, D, F
Nets = B, E, G, H

Figure B (Triangular prism)

SA: 3 rectangles + 2 triangles

Rectangles: (20·8) + (20·10) + (20·6) = 480 ft²

Triangles: (8·6)/2 + (8·6)/2 = 48 ft²

Total SA: 528 ft²

Figure E (Square pyramid)

SA: 1 square + 4 triangles

Square: 10·10 = 100 yd²
Triangles: (12·10)/2 + (12·10)/2 + (12·10)/2 + (12·10)/2 = 240 yd²

Total SA: 340 yd²

Figure G (Rectangular prism)

SA = 2 wide rectangles + 4 narrow rectangles

Wide: (7·11) + (7·11) = 154 cm²

Narrow: (2·7) + (2·7) + (11·3) + (11·3) = 94 cm²

Total SA: 248 cm²

Figure H (Cube)

SA = 6 squares

Squares: 6 x (1·1) = 6 m²

Total SA: 6 m²

I hope this helps and God bless!