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Determine the value of X using third angle theorem and congruent triangles

👉 Learn how to solve for unknown variables in congruent triangles. Two or more triangles are said to be congruent if they have the same shape and size. When one of the values of a pair of congruent ...
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How to use proportions for an isosceles triangle

Learn how to solve with similar triangles. Two triangles are said to be similar if the corresponding angles are congruent ...