How to find square root of 18

There is a very complicated paper-and-pencil method to calculate the square root one digit at a time.

Step-by-step explanation:

We know that 4 is the first digit of our answer, so write it down.

Multiply the top number by the left number (4 x 4)

Write it down below the 18 and subtract (18 - 16 = 2)

597

step-by-step explanation:

p ÷ r = tan(x)

step-by-step explanation:

given that there is a figure below shows a right triangle: a right triangle is shown with hypotenuse equal to q units and the length of the legs equal to p units and r units.

graph is missing so i will create the graph as per given information.

the angle between the legs having lengths p units and q units is y degrees. the angle between the legs having lengths r units and q units is x degrees.

now we need to find about what is p ÷ r equal to.

so we can use trigonometric ratio tan(x)=[altitude]/[base] to find the value of p ÷ r, because p is the altitude and r is the base.

p ÷ r=tan(x)

hence final answer is p ÷ r=tan(x).