Read method 2 of the article to understand how to do it:
https://www.wikihow.com/Balance-Chemical-Equations
Answer:
1. Figure C has reflection symmetry.
2. A and D have reflection symmetry.
Step-by-step explanation:
1. When you cut the arrow horizontally, you get the same shape on each side.
2. When you divide them, you should have symmetry, meaning they are the same when divided/cut.
Answer:
77,786.251
Step-by-step explanation:
A) 8/40 = 1/5
b) 12/40 or 6/20
c) 26/40 or 13/20
Answers -
statement B, D, E are correct .
Solution -
As figure B is the scaled copy of figure A, so it is smaller than B and its perimeter is also less than that of A.
On the other hand , as B is the smaller replica of A, so it has same number of edges ,angels and sides. Though the length of the sides are not same, the angels are same. so the perimeters of both figures are different but sum of all the angels are same.
