Two equilateral triangles with side 4 cm and 6 cm are _____ triangles.
Find the perimeter of each of the following shapes:
(a) A triangle of sides 3 cm, 4 cm and 5 cm.
(b) An equilateral triangle of side 9 cm.
(c) An isosceles triangle with equal sides 8 cm each and third side 6 cm.
Construct triangle with sides 5 cm, 4 cm, and 6 cm. Then construct another triangle whose sides are 23 times the corresponding sides of triangle