contestada

Which three lengths could be the lengths of the sides of a triangle?

9 cm, 14 cm, 22 cm

20 cm, 6 cm, 8 cm

21 cm, 7 cm, 7 cm

15 cm, 5 cm, 20 cm

Respuesta :

9, 14, and 22.
The formula for checking if a triangle will work is side a + side b > side c.
The only one that works is 9, 14, and 22.