Triangular 28451

The surface of the triangular prism is 157.2 dm2. Its shell has an area of 126 dm2. What space will it occupy on a shelf placed on a pedestal?

Correct answer:

S =  15.6 dm2

Step-by-step explanation:

S1=157.2 dm2 S2=126 dm2  S1 = 2 S + S2  S=(S1S2)/2=(157.2126)/2=15.6 dm2



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