Maths Elementary Shapes part 13 (Combo of Triangles Types) CBSE Class 6 Mathematics VI  Summary and Q&A
TL;DR
Different combinations of triangles can exist based on their sides and angles, including acute, rightangled, obtuse, isoceles, and equilateral triangles.
Questions & Answers
Q: Can a triangle be both rightangled and isoceles?
Yes, a triangle can be both rightangled and isoceles if it has one angle equal to 90° and two equal sides.
Q: What are the possibilities for scaling triangles?
Scaling triangles can be acute if all sides are unequal, rightangled if one angle is 90°, or obtuse if one angle is greater than 90°.
Q: Are there any rightangled equilateral triangles?
No, there are no rightangled equilateral triangles because in an equilateral triangle, all angles must be 60°.
Q: What kind of triangle can be both obtuse and isoceles?
An obtuseangled isoceles triangle can have one angle greater than 90° and two equal sides.
Summary & Key Takeaways

Triangles can have combinations of different properties, such as being rightangled and isoceles.

Scaling triangles can be acute, rightangled, or obtuse, depending on the length of their sides.

Isoceles triangles can also be acute, rightangled, or obtuse, depending on the length of their sides and the size of their angles.

Equilateral triangles can only be acute because all angles need to be equal.