Question

find the area and the perimeter of the rectangle whose length is 15 cm and the length of one diagonal is 17 centimetre​

Answer 1

Answer:

we/know that rectangle forms an anglle of 90 degree

so, by using pythagoras theorem

17 square= 15 sq+ breadth sq

289-225= breadth sq

64= breadth sq

so, breadth= 8 cm

so, perimeter=2 (l+b)

2 multiply 23

= 56 cm

area= l multiply bradth

15 multiply8

=120 cm sq

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Step-by-step explanation: