Which sets of measurements could be the side lengths of a triangle? Select each correct answer.

(A) 3 cm, 3 cm, 3 cm
(B) 4 cm, 8 cm, 13 cm
(C) 5 cm, 9 cm, 14 cm
(D) 6 cm, 7 cm, 8 cm
(E) 7 cm, 7 cm, 10 c

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle

The perimeter of a regular pentagon is represented by the expression 35d-25. daryl correctly wrote expression to represent the one side of the pentagon