What can be the length of the third side of the triangle, if its other sides of the wound, respectively

What can be the length of the third side of the triangle, if its other sides of the wound, respectively: a) 7cm and 16cm; b) 21cm 7mm and 47cm 6mm c) 5cm and 12cmg) 2cm 3mm and 7cm 8mm.

One side of a triangle cannot be more than the sum of the other two sides. Thus, if the two sides of the triangle are equal respectively:

a) 7 cm and 16 cm, then the third side must be less than 7 + 16 = 23 (cm);

b) 21 cm 7 mm and 47 cm 6 mm, then the third side should be less than 21.7 + 47.6 = 69.3 (cm);

c) 5 cm and 12 cm, then the third side should be less than 5 + 12 = 17 (cm);

d) 2 cm 3 mm and 7 cm 8 mm, then the third side should be less than 2.3 + 7.8 = 10.1 (cm).

Answer: a) <23 cm; b) <69.3 cm; c) <17 cm; d) <10.1 cm.