a. The points 𝐴,𝐵 and 𝐶 have co-ordinates (−1,2),(1,1) and (2,3) respectively. Sketch the triangle 𝐴𝐵𝐶. By calculating the lengths of the sides of this triangle, determine if it is scalene, isosceles, or equilateral.
"BC=\\sqrt{(2-1)^2+(3-1)^2}=\\sqrt{5}"
"AC=\\sqrt{(2-(-1))^2+(3-2)^2}=\\sqrt{10}"
The triangle ABC is isosceles.
Comments
Leave a comment