Answer:
Step-by-step explanation:
3a) Note that 16 cm + 18 cm = 34 cm. So all three sides are on a single line, which is possible, but this arrangement does not form a triangle. NO
3b) 50 + 70 + 59 = 179. The interior angles of a triangle must sum up to 180 degrees. Here, that's not the case. NO
