What type of triangle is shown in the image? Acute scalene triangle
Obtuse scalene triangle
Acute isosceles triangle
Right isosceles triangle

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.