Question

construct an isosceles right angled triangle in which length of each of its equal sides is 3.5 cm

Answer 1

Steps of construction
1 draw a line of 3.5 cm and name it AB or as your wish
2 from A as a point draw 90 degree and draw a line AX
3 from A as a Point cut an arc of 3.5 cm on AX And name it C.
4 From B As a point cut an arc of 3.5 cm on AX
5 Join Bc
The required Isosceles Right angled Triangle will be formed