Classification of Triangles: Level 2 Challenges Practice Problems Online

Two sides of a triangle measures $10\text{ cm}$ and $6\text{ cm}$ and the angle in between them measures $120^\circ$ . What is the measure of the third side (in $\text{cm}$ )?

A triangle has a $60^\circ$ angle. If two of its sides are $1\text{ m}$ long, how many different triangles can one draw which fit these measurements?

A square and an equilateral triangle have the same perimeter. If the area of the triangle is $16 \sqrt{3}$ , what is the area of the square?

If the sides of a non-degenerate triangle are $a,b,\sqrt{a^2+b^2+ab}$ , then find the measure of the greatest interior angle of this triangle (in degrees).

130^\circ

50^\circ

110^\circ

120^\circ

100^\circ

90^\circ

The length of two sides of an isosceles triangle are 5 units and 16 units. What is the perimeter of the triangle (in units)?

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Classification of Triangles: Level 2 Challenges