Sandy made a reflective sticker for her bicycle in the shape of a triangle. two of the three side lengths were 3 cm and 4 cm. could the third side of the reflective sticker be 6 cm long? explain your reasoning. could the third side of the reflective sticker be 1 cm long? explain your reasoning. sandy decides to make the reflective sticker in the shape of an isosceles triangle. how many unique shapes for the sticker are possible? use a sketch to show your reasoning. label each side length.