check if (1,2 ) (3,4) ( 4,7 )form a triangle or straight line from distance formula
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Answer:
A(1,2), B(3,4) and C(4,7)
Step-by-step explanation:
|AB| = √(3-1)²+(4-2)²
= √(2)²+(2)²
= √4+4
= √8 = 2√2
|BC| = √(4-3)²+(7-4)²
= √(1)²+(3)²
= √1+9
= √10
|CA| = √(1-4)²+(2-7)²
= √(-3)²+(-5)²
= √(9)+(25)
= √34
This triangle not a straight. This is Scelene Triangle, which have not equal both three sides.
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