hi all,
this is a problem that requires the answer expressed as a surd. (calculator not to be used)
The sides of a rectangle are in the ratio 2:3. The diagonal is of length 26cm. Find the perimeter.
The answer given in the answer section is
sides are therefore
and perimeter
using prime factors of 1352 and 2028
using a calculator the answer i calculated is not equal to the textbooks answer
I think you got it But just as an assurance I will do it your way
Lets consider the sides to be 3x/5 and 2x/5
Now we follow the steps (same as you did here)
....this thing came from Pythagoras theorem
Perimeter is the sum of lengths of all sides
Thus what we basically did was
(3x/5 + 2x/ 5) + (3x/5 + 2x/5) = x + x = 2x =Answer