An isosceles triangle has 2 sides of equal length. The angles at the base of the equal sides are equal. The angles inside a shape are called interior angles. The interior angles in a triangle ...

It is a closed 3-sided shape made up of straight lines ... This means that this triangle is isosceles. An isosceles triangle has two sides that are congruent (equal) in length.

Properties of symmetry: - Students may notice symmetry in the isosceles and equilateral triangles and non-symmetry ... While initially very similar looking, these triangles behave very differently ...

These shapes aren't constellations ... both from the constellation Gemini, you get smaller isosceles triangle, with the Red Planet as the brightest of the three points. This triangle will slowly ...