Question

(6) How many lines of symmetry does an isosceles triangle have? Draw an isosceles triangle and
its lines of symmetry?
(7) Find out whether it is possible to have a triangle with following sides AB = 20cm, BC = 10cm.
AC = 5cm​

Answer 1

Answer:

3 lines of symmetry

no the triangle with the given sides are not possible.... as sum of any 2 sides of triangle should be greater than the third side...

but here BC + AC = 10+5= 15 which is smaller than the third side... hence not possible....