1. The problem asks to identify two words that describe each triangle based on its properties. 2. Important definitions: - Acute triangle: all angles less than 90°. - Obtuse triangle: one angle greater than 90°. - Right triangle: one angle exactly 90°. - Scalene triangle: all sides of different lengths. - Isosceles triangle: at least two sides equal. - Equilateral triangle: all three sides equal. 3. For each triangle: - Top-left: two equal sides marked, so isosceles; angles appear less than 90°, so acute. - Second from top-left: no equal sides, so scalene; one angle > 90°, so obtuse. - Third from top-left: no equal sides, scalene; all angles < 90°, acute. - Fourth from top-left: two equal sides, isosceles; all angles < 90°, acute. - Fifth from top-left: two pairs of equal sides marked (likely a mistake, but assuming equilateral), and right angle marked, so right and equilateral. - Sixth from top-left: three equal sides marked, equilateral; right angle marked, so right and equilateral. - Seventh from top-left: right angle marked, right; no equal sides, scalene. Final answers: 1) Acute, Isosceles 2) Obtuse, Scalene 3) Acute, Scalene 4) Acute, Isosceles 5) Right, Equilateral 6) Right, Equilateral 7) Right, Scalene