Triangles: Types and Parts

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Overview of triangle types.

Jeralene

Thailand

#	Player	Accuracy	time
1	Jeralene February 24, 2026	% 100	00:58

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Fill in the Blanks Triangles: Types and PartsOnline version Overview of triangle types. by Jeralene 1 Triangles are polygonal shapes with three sides and three angles . When all sides are equal , the triangle is , a special case of symmetry . If exactly two sides are equal , the triangle is , often with two equal angles opposite those sides . When all sides differ , the triangle is , having three distinct angles . By measure , angles can be , obtuse , or , depending on how they fit together . The base is a chosen side , and the height helps compute the area . 2 A triangle has three . The vertex at the top is called the , and the is the angle at that . The is the angle at the base ; the is the perpendicular from the apex to the base . The other two sides are the in an isosceles triangle , while in general they are simply sides . The base angles are the angles adjacent to the base .