Reverse the sign of each term you are subtracting and then add as usual. Hope this helps!
No because a square pyramid must hav a square for its base and a square is not a triangle
answer is not possible
Answer:
Step-by-step explanation:
Astronomers were trying to find the weight of six planets - Mars, Venus, Pluto, Jupiter, Mercury and Saturn. The number of planets lighter than Mars was equal to the number of planets heavier than Venus. Saturn was heavier than Mars and Mercury was heavier than Pluto. Venus was lighter than Mars. Saturn was not the heaviest planet.
