Dale233
Dale233 Dale233
  • 01-06-2017
  • Mathematics
contestada

The vertices of are D(7, 3), E(4, -3), and F(10, -3). Write a proof to prove that is isosceles.

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mreijepatmat
mreijepatmat mreijepatmat
  • 01-06-2017
The vertices of are D(7, 3), E(4, -3), and F(10, -3)

Prove tat DE = DF
Length of a segment = 
√[(x₂ - x₁) +(y₂ -y₁)]

DE = √([4-7)² + (-3 -3)²] = √45 = 3√5
DF = √[(10-7)² +(-3 -3)²] = √45 b= 3√5
Hence DE = DF = 3√5 and DEF is  ISOSCELES 
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ttaimi1458
ttaimi1458 ttaimi1458
  • 03-02-2021

Answer:

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