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Answer: X = 12.1 units
Step-by-step explanation:
Solving the side x of the triangle just requires the Pythagorean theorem.
x^2 + 7^2 = 14^2
x^2 + 49 = 196
subtract 49 on both sides, to cancel the 49 on the left side.
x^2 = 147 units
extract the square root of each side.
X = 12.1 units
Hope I Helped!
Answer: AB=DE=6 units

Step-by-step explanation:
Given: ∆ABC ≅ ∆DEF
We know that if two triangles are congruent then their corresponding sides and angles are congruent. [By CPCTC]
Now, AB≅DE=6 units
Therefore, AB= 6units
EF≅BC=4 units and AC=DF


A^2 + b^2 = c^2
9^2 + 12^2 = 225
square root of 225 is 15