 # RD Sharma Solutions Class 8 Mathematics Solutions for Understanding Shapes Special Types Quadrilaterals Exercise 17.3 in Chapter 17 - Understanding Shapes Special Types Quadrilaterals

Question 15 Understanding Shapes Special Types Quadrilaterals Exercise 17.3

A mason has made a concrete slab. He needs it to be rectangular. In what different ways can he make sure that it is rectangular?

For a concrete slab to be rectangular the mason has to check,

(i) By measuring each angle and

(ii) By measuring the lengths of diagonals.

Video transcript
"Hello guys, welcome to my name is Jaime go to De and here we have a question or rectangle. The question is amazing has made a concrete slab. He needs it to be rectangular in what different ways. Can he make sure that it is a rectangular so that two important points you need to make sure so we'll ride on the first point. So for the concrete slab will be rectangular heat has to check point. The first point is By measuring each angle This is the first point after that. He has to take one more thing. That is a diagonal. So by measuring second point would be by measuring diagonal in. When measuring the length Of diagonal If these two points are clear, then he became bigger rectangular slab. So by measuring each angle it mean that each angle in this has to be a 90 degree. There is a vertex into the vertex. Each angle has to be 90 degree. This angle has to be 90 degree and second point is by measuring the length of battle. It means that the length of the diagonal should be same then you can get the rectangular slab. I hope you have understood what is this month is about if you only question you can leave a comment below and don't forget to subscribe to this channel for more videos. Thank you so much for watching."
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