In a triangle ABC and ADC, if both are congruent AC = 10 units, then AD is 10 units. S0, option C is correct.
What are congruent angles?
Angles who are of same measurement are called congruent.
Suppose that two angles ∠A and ∠B are of same measure, then
[tex]m\angle A = m\angle B[/tex]
is the notation to say that they are of same measurement, where the small m shows that its the measurement of the angles they're preceding.
The two triangles are said to be congruent if the length of the sides is equal, a measure of the angles are equal and they can be superimposed.
We write the congruency between them as;
[tex]\angle A \cong \angle B[/tex]
In a triangle ABC and ADC, if both are congruent then
AC = 10 units,
AD = 10 units.
SO, option C is correct.
Learn more about congruent triangles;
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