Let the second side be equal to x
Then the first side is x-5
The third side will be x-5-2 = x-7
Therefore you add all the following sides and equate it to 42 yards. Ie x+x+5+x-7 = 42
3x=44
X= 44/3
Therefore the second sides length is 44/3
The first sides length is 44/3 -5 = 29/3
The third side is 44/3 -7 = 23/3
3/4x4=3 therefore she needs 3 cups of flour to make four batches of cookies : )
The sum of 6(-2.1k-2) + (7k+5) is -5.6k-7
Pearl's Proof is incorrect.
The theorem is to proof ∠AKL≅ ∠FLK.
The real proof is as follows:
- Line AB ║ EF with transversal segment Gj
- Angle AKL is congruent to angle GKB . (Vertical Angles Theorem)
- Angle GKB is congruent to angle FLK (Corresponding Angles Theorem)
- angle AKL is congruent to angle FLK (Transitive Property)
Therefore, Tonya's Proof is definitely right and Pearl's Proof is definitely wrong.
The second proof of pearl was wrong. Angle AKL is congruent to angle GKB but they are not adjacent angles.
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