Answer:
SA = 124 cm²
Step-by-step explanation:
The lateral surface area is the area of all sides besides that base, so 93 cm² is the sum of 3 sides of the tetrahedron.
93/3 = 31 cm² per side, there are 4 sides, so 31(4) = 123 cm² is the total surface area
4x+4+8=24
4x+12=24
-12. -12
4x =12
divide by 4
x=3
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N'(-2,2)
G'(-2,-4)
H'(6,-4)
I’m pretty sure it’s 1 1/3