Question

What are the theorems there for class 10 cbse (1) Traingles (2) Circles (both chapters) for board exam

Answer 1

√Pythagoras and it's converse
√B. P. T THEOREM AND ITS converse
√SAS triangle similarity theorem
These were from triangles

Now, CIRCLE
THEOREM 10.1= the tangent at any point of a circle is perpendicular to radius through the point of contact.

THEOREM 10.2= The lengths of the tangent drawn from external point to a circle are equal