if the vertices of a triangle are A(1,2),B(-2,3),C(2,3) then which is the largest angle?

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if the vertices of a triangle are A(1,2),B(-2,3),C(2,3) then which is the largest angle?

2007-10-30 04:28:27 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

2 answers

length of AB is √(9 + 1) = √10
length of BC is √(16 + 0) = 4
length of CA is √(1 + 1) = √2

largest angle is opposite longest side, so angle A is largest.

2007-10-30 04:37:36 · answer #1 · answered by Philo 7 · 0⤊ 0⤋

This looks like a homework question so I won't give you the answer but the largest angle will be angle opposite the longest side. Or to put it another way, it will be the angle between the two shortest sides.

2007-10-30 11:37:08 · answer #2 · answered by TargetTesting 1 · 0⤊ 0⤋