Question

find the perimeter of the rectanglw whose length is 150cm and dialgonal is 170cm​

Answer 1

Answer:

the perimeter is 460cm

Answer 2

Answer:

460cm

Step-by-step explanation:

The diagonal d of the rectangle forms hypotenuse of a right angled triangle with length l and breadth b as the other two sides.

Hence by Pythagoras theorem.

l^2+b^2 = d^2  

So, 150^2 + b^2 = 170^2

=> b^2 = 28900–22500

           = 6400

           => b = 80 cm.

Therefore, the perimeter of the rectangle is = 2(l+b) = 2(150+80) = 460cm