Question

Abc is an isoceles triangle right angle at c with ac 4 cm find ab

Answer 1

= ab =4cm because in a isosceles triangle the two opposite sides of triangle are always equal

Answer 2

AC=CB=4cm

in triangle ABC

by pythagores theorem

AC^2+BC^2=AB^2

4^2+4^2=AB^2

16+16=AB^2

√32=AB

AB=√2*2*2*2*2

AB=4√2

AB=4*1.414

AB=5.656