Respuesta :
well a television is a square. so the diagonal will make a right triangle. so we have the base and hypotenuse of a right triangle. We know in rightntriangles that
a^2 + b^2 = c^2
so
a^2 + 34.3^2 = 42.1^2
a^2 = (42.1^2) - (34.3^2)
a = square root((42.1^2) - (34.3^2))
a = 24.4
a^2 + b^2 = c^2
so
a^2 + 34.3^2 = 42.1^2
a^2 = (42.1^2) - (34.3^2)
a = square root((42.1^2) - (34.3^2))
a = 24.4
Answer: 836.9 in^2 or B on Usatestprep. nvm wrong answer thought this was a different question lol
Step-by-step explanation: