Triangle abc has vertices with coordinates a(-1, -1), b(4, 0), and c(0, 4). prove that △abc is an isosceles triangle but not an equilateral triangle. [the use of the set of axes is optional.]

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Ответ:

Inriso

10.11.2022

Mathematics

The arc length is given by:
Arc length=θ/360×π×d
θ=52
d=2×1.4=2.8 m
thus
Arc length will be:
52/360×3.14×2.8
=1.27 m

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Triangle abc has vertices with coordinates ​a​(-1, -1), ​b​(4, 0), and ​c​(0, 4). prove that △​abc​ is an isosceles triangle but ​not​ an equilateral triangle. [the use of the set of axes is optional.]