Answer:
y = 8
Step-by-step explanation:
Two triangles are said to be congruent if all the three sides and three angles of both triangles are equal.
The distance between two points on the coordinate plane is given as:

In triangle ABC:

In triangle MNO:

Since triangle ABC and triangle MNO are congruent, hence:
|AB| = |MN| = 2√10, |AC| = |MO| = 5, |BC| = |NO| = √45

Hence O = (4, 8)
Answer:
So each side length is 4s+6
Step-by-step explanation:
Since we know the triangle is an equilateral triangle, we know the perimeter of the triangle is given by since all the sides are the same length
P = 3s where s is the side length
12x+18 = 3s
Divide each side by 3
12x/3 + 18/3 = 3s/3
4s +6 = s
So each side length is 4s+6
Answer:
32in
Step-by-step explanation:
8in + 8in + 8in + 8in = 32in
Let the smallest angle = x
Then the larger one = 71x
Supplementary angles are always equal to 180o
x + 71x = 180o Add the left side
72x = 180 Divide by 72
x = 180/72
x = 2.5
The smallest angle = 2.5 degrees
The largest angle = 2.5 * 71
The largest angle= 177.5 degrees.
Answer:
25.821568896
Step-by-step explanation: