Q. Can the sides of a triangle have lengths 2, 6, and 7?Choices:(A) yes(B) no
Check Triangle Inequality: To determine if these can be the sides of a triangle, we need to check the triangle inequality theorem. This theorem states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
Check 2 + 6 > 7: Check if 2 + 6 > 7. Calculation: 2+6=8, and 8 > 7, so this part is true.
Check 2 + 7 > 6: Check if 2 + 7 > 6. Calculation: 2+7=9, and 9 > 6, so this part is true too.
Check 6 + 7 > 2: Check if 6 + 7 > 2. Calculation: 6+7=13, and 13 > 2, so this part is also true.