# Tank

In the middle of a cylindrical tank with a bottom diameter 251 cm is standing rod which is 13 cm above the water surface. If we bank rod its end reach surface of the water just by the tank wall.

How deep is the tank?

How deep is the tank?

**Result****Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):**

**Showing 0 comments:**

**Be the first to comment!**

#### To solve this example are needed these knowledge from mathematics:

## Next similar examples:

- Eq with reciprocal

Solve given equation with reciprocal member: a-6/a+10=4/8 - The chord

Calculate a chord length which the distance from the center of the circle (S, 6 cm) equals 3 cm. - Quadratic equation

Find the roots of the quadratic equation: 3x^{2}-4x + (-4) = 0. - Quadratic equation

Solve quadratic equation: 2x^{2}-58x+396=0 - Equation

Equation ? has one root x_{1}= 8. Determine the coefficient b and the second root x_{2}. - Square roots

What is equal to the product of the square roots of 295936? - Product

The product of two consecutive odd numbers is 8463. What are this numbers? - Theorem prove

We want to prove the sentence: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started? - Calculation

How much is sum of square root of six and the square root of 225? - Roots

Determine the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate: ? - Discriminant

Determine the discriminant of the equation: ? - EQ2

Solve quadratic equation: ? - Chord 5

It is given circle k / S; 5 cm /. Its chord MN is 3 cm away from the center of the circle . Calculate its length. - Completing square

Solve the quadratic equation: m^{2}=4m+20 using completing the square method - Fraction

For what x expression ? equals zero? - 6 terms

Find the first six terms of the sequence. a1 = 7, an = an-1 + 6 - Trees

A certain species of tree grows an average of 0.5 cm per week. Write an equation for the sequence that represents the weekly height of this tree in centimeters if the measurements begin when the tree is 200 centimeters tall.