Answer:
Please see attached picture for full solution.
Step-by-step explanation:
You should multiply the number outside the bracket with each term, with their symbols (plus/minus), in the bracket.
Answer:
a) 15*15=225 that is the area
b)see picture that I drew (sorry I have terrible drawing skills on a computer) but in a an isosceles triangle the two legs are congruent and the base is not when you cut a square diagonally as you have done this one the base will not be the same as the other two legs.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Rectangular prisms have F=6 faces and E=12 edges.
By cutting one corner, we are adding 3 edges.
By cutting two corners, we are adding 2*3 = 6 edges.
Therefore the new solid has 12 + 6 = 18 edges.