JEE MATHEMATICS MCQ: PROPERTIES OF TRIANGLES

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Analyzing +4 | -1

A B C

is a triangle whose internal angles are

A, B, C

and

\triangle D E F

is pedal triangle of

\triangle A B C

, then the ratio of the area of

\triangle D E F

to area of

\triangle A B C

View answer and explanation

Correct option: A

2 \cos A \cos B \cos C

The correct answer is A (

2 \cos A \cos B \cos C

). The ratio of the area of the pedal triangle to the area of the original triangle is

2 \cos A \cos B \cos C

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