500mm is 50 cm so you can either say it is 80cm or 800mm.
Answer:
That one may switch two variables in an addition problem
Step-by-step explanation:
For instance 1+2=3 or 2+1=3
Answer:
Step-by-step explanation:

15 i dont know what u mean hope i helped bye
Answer:



QRS is isosceles
Step-by-step explanation:
Given
See attachment for complete question
From the attachment, we have the following parameters





Solving further, we have:








From the calculations;

<em>This means that: QRS is isosceles</em>