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The points (1,7),(4,2) and (-1,-1) forms a triangle which is.. scalene,equaliteral,or isoceles |
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Answer» Answer: LET the VERTICES of the triangle be A(1,7), B(4,2), C(-1,-1) So, AB = √(1-4)²+(7-2)² = √(-3)²+(5)² = √9+25 = √34 BC = √(4+1)²+(2+1)² = √(5)²+(3)² = √25+9 = √34 CA = √(-1-1)²+(-1-7)² = √(-2)²+(-8)² = √4+64 = √68 Here, AB = BC ≠ CA ⇒ ΔABC is an isosceles Δ. MARK AS THE BRAINLIEST ANSWER... Step-by-step explanation: |
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