Question and Answers Forum

All Questions      Topic List

Geometry Questions

Previous in All Question      Next in All Question      

Previous in Geometry      Next in Geometry      

Question Number 3262 by Rasheed Soomro last updated on 08/Dec/15

Could ^3 (√2)  be drawn on numbered line with   the help  of  ruler and compass only?

$$\mathcal{C}{ould}\:\:^{\mathrm{3}} \sqrt{\mathrm{2}}\:\:{be}\:{drawn}\:{on}\:{numbered}\:{line}\:{with}\: \\ $$$${the}\:{help}\:\:{of}\:\:{ruler}\:{and}\:{compass}\:{only}? \\ $$

Commented by prakash jain last updated on 09/Dec/15

(2)^(1/3)  cannot be drawn using a ruler and compass.

$$\sqrt[{\mathrm{3}}]{\mathrm{2}}\:\mathrm{cannot}\:\mathrm{be}\:\mathrm{drawn}\:\mathrm{using}\:\mathrm{a}\:\mathrm{ruler}\:\mathrm{and}\:\mathrm{compass}. \\ $$

Commented by Rasheed Soomro last updated on 10/Dec/15

Can this be proved?

$$\mathcal{C}{an}\:{this}\:{be}\:{proved}? \\ $$

Commented by 123456 last updated on 10/Dec/15

transcendental number?

$$\mathrm{transcendental}\:\mathrm{number}? \\ $$

Commented by prakash jain last updated on 11/Dec/15

(2)^(1/3)  is not transcendental as it is a solution  of x^3 −2=0.  In 2 D with ruler and compass only (√2) and  any expression inolving square roots can be  constructed.

$$\sqrt[{\mathrm{3}}]{\mathrm{2}}\:\mathrm{is}\:\mathrm{not}\:\mathrm{transcendental}\:\mathrm{as}\:\mathrm{it}\:\mathrm{is}\:\mathrm{a}\:\mathrm{solution} \\ $$$$\mathrm{of}\:{x}^{\mathrm{3}} −\mathrm{2}=\mathrm{0}. \\ $$$$\mathrm{In}\:\mathrm{2}\:\mathrm{D}\:\mathrm{with}\:\mathrm{ruler}\:\mathrm{and}\:\mathrm{compass}\:\mathrm{only}\:\sqrt{\mathrm{2}}\:\mathrm{and} \\ $$$$\mathrm{any}\:\mathrm{expression}\:\mathrm{inolving}\:\mathrm{square}\:\mathrm{roots}\:\mathrm{can}\:\mathrm{be} \\ $$$$\mathrm{constructed}. \\ $$

Terms of Service

Privacy Policy

Contact: info@tinkutara.com