Answer:
EF is 4 units.
Step-by-step explanation:
It is given that the two triangles 
are congruent to each other i.e.
Coordinates are given as:
A(-1,1)
B(2,4)
C(3,1)
As per the property of congruence, all the corresponding sides and angles of the two triangles are equal to each other.
i.e. AB = ED
BC = DF
AC = EF
We are given with the coordinates of points A, B and C here from which we can easily calculate the side AC using the distance formula.
Where 
are the coordinates of the two points whose distance is to be calculated.
So,
Hence, <em>AC = EF = 4 units</em>
Answer:
x + y = 20
1.5x + 5y = 54.50
Solve the equations and get: x = 13 ∧ y = 7
Marcy bought 13 books and 7 CDs.
answer is -8 hope that helps
Answer:
A leg.
Step-by-step explanation:
The hypotenuse is always the side that is across from the corner. In this triangle, the hypotenuse is 14.
The missing length in triangle A given the similarity between the two triangles is 18.67
<h3>Solving triangles using ratio</h3>
Triangle A is similar to triangle B
Triangle A:
- Side 1 = (x + 2)
- Side 2 = 14
Triangle B:
Ratio of side 1 to side 2 of the triangles respectively
(x + 2) : 8 = 14 : 6
(x + 2) / 8 = 14/6
(x + 2) × 6 = 8 × 14
6x + 12 = 112
6x = 112 - 12
6x = 100
x = 100/6
x = 16.67
Therefore, Triangle A:
Side 1 = (x + 2)
= 16.67 + 2
= 18.67
Learn more about ratio:
brainly.com/question/2328454
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