Question

The length of the diagonal of a rectangle is 50cm. If the length on one of the sides is 30cm what the length on the other side?

Answer 1

40 cm

Explanation:

Step one:

Given data

Diagonal = 50cm

If the length on one of the sides is 30cm

Then applying Pythagoras theorem we can find the other side as

Step two:

`d^2= l^2+w^2\\\\50^2= 30^2+w^2\\\\2500=900+w^2\\\\2500-900= w^2\\\\1600=w^2\\\\`

square both sides we have

w= √1600

w= 40 cm