JEE MATHEMATICS MCQ: PROPERTIES OF TRIANGLES

1 Medium

1 of 1

Application +4 | -1

{A_1}\,{A_2}\,{A_3}\,{A_4}\,{A_5}

be a regular pentagon inscribed in a unit circle. Then

\left( {{A_1}{A_2}} \right)\,\,\left( {{A_1}{A_3}} \right)

is equal to

View answer and explanation

Correct option: D

\sqrt 5

Option D (

\sqrt 5

) is correct because the product of the lengths

{A_1}{A_2}

and

{A_1}{A_3}

in a regular pentagon inscribed in a unit circle equals

\sqrt 5

More Questions from PROPERTIES OF TRIANGLES

Practice All Chapter MCQs →

{p_1},{p_2},{p_3}

\Delta \;ABC

A,B,C

\Delta

p_1^{ - 2} + p_2^{ - 2} + p_3^{ - 2}

5k,\;6k,\;5k

k

\Delta \,ABC

a = \left( {b - c} \right)\sec \theta

\frac{{2\,\sqrt {bc} }}{{b - c}}\,\,\sin \,\,\frac{A}{2} =

\Delta \;ABC,\frac{{b + c}}{a}

\Delta = {a^2} - {\left( {b - c} \right)^2}

\Delta

\Delta \;ABC

\tan A

A

2 s