Select all pairs of congruent angles

1,4

2,3

1,6

6,7

5,8

5,2

1,6

7,2

8,1

3,6

4,5

1,5

2,6

3,7

4,8

Step-by-step explanation:

Alternate interior, exterior, vertical, and complemetary angles are congruent.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

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step-by-step explanation:

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