Right-angled triangle can not be an isosceles triangle.

                                     $\angle DEF=45°$                                                                  $\angle GHI=60°$

Let's measure the angles with protractor and verify.

Write a logical statement for the set of words:

Rectangle is a special type of Parallelogram.

Write a logical statement for the set of words given below: Rhombus is a special type of Parallelogram.

Write a logical statement for the set of words given below:

Parallelogram is a special type of Trapezium.