Dear student,

I hope you are doing well.

We would be glad to help you but I request you to please rewrite your question completely and clearly so that we could provide you with the best possible solution as soon as possible.

Also, I am attaching a link where you can check whether it is the same question which you wanted to ask

https://learn.careers360.com/ncert/question-an-umbrella-is-made-by-stitching-10-triangular-pieces-of-cloth-of-two-different-colours-see-fig-1216-each-piece-measuring-20-cm-50-cm-and-50-cm-how-much-cloth-of-each-colour-is-required-for-the-umbrella/

Thank You.