Quiz 4-1: Triangles

Classify this triangle by its angles and its sides

Classify this triangle by its angles and sides.

Using the distance formula, find the sides of triangle DEF, and classify the triangle; (Equilateral, Isosceles, Scalene). Justify your answer by showing your work.

If triangle JKL is an equilateral triangle, JK= 13x+5, KL= 17x-19, and JL= 8x+35, find the value of x.

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In a triangle, if we are missing one angle, what could you do to find the missing angle?

The two congruent sides in an isosceles triangle are called...

The angle where the two congruent sides of an isosceles triangle intersect is called the...

If the two legs are congruent, we know that the base angles are...

Find the value of x.

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