<span>We already know that angles ECS and TRS are congruent, because they are both right angles (given). We also know that angles CSE and RST are congruent because they are vertical angles and vertical angles are always congruent. That gives us two sets of congruent angles. We just need to know something about one pair of sides to prove the two triangles congruent to each other. I do question the order of the letters in the names of the triangles--if that's really the order the letters are written in the problem, then we would need to know that ES is congruent to RT or that CS is congruent to ST. If the order of the letters of the names of the triangles is a little different we would need to know that CS is congruent to RS or that any of the other sides that appear to match are actually congruent. </span>
To prove that triangle CES is
congruent to RST, we can determine it through the following comparisons: (1) SAS<span> (Side-Angle-Side):
If two pairs of sides of two triangles are equal in length, and the included
angles are equal in measurement, then the triangles are congruent. (2) SSS (Side-Side-Side):
If three pairs of sides of two triangles are equal in length, then the triangles
are congruent.</span>
Find the number that both can be divided by i.e. the common denominator of 56/8 is 8 because 56 is divisible by 8 and 8 is also divisible by 8. so by finding the common denominator and dividing the fraction, the equation would look like this: 7/1
