RPS #005 - Dimensional Geometry

Geometry Level 3

Consider a right triangle named $ABC$ with $AB$ as its hypotenuse. $D$ is a point on $BC$ such that $AD$ is the angle bisector of $\angle BAC$ . $E$ is a point on $AB$ such that $\angle ADE = 90 ^ \circ$ .

The value of $\frac{BC \times AE}{AB \times CD}$ is?

The answer is 2.

1 solution

Rimba Erlangga
Jan 23, 2015

Im sorry for the mistake of the problem. Here is the solution n

You can use trig identity $sin 2\alpha = 2 \times sin \alpha \times cos\alpha$ on both small and big right triangle

Cn u plz prvide a diagram fr the prblm ..... Hw cme AD be the bisectr of angle ABC ??it shld be BD eithr...?

tanmay goyal - 6 years, 4 months ago

The same question is in my mind

karandeep singh ludhar - 6 years, 4 months ago

Thanks. I've rewritten the question to help with clarity. Can you review it for accuracy?

Calvin Lin Staff - 6 years, 4 months ago

ok thx sir

Rimba Erlangga - 6 years, 4 months ago

RPS #005 - Dimensional Geometry

The answer is 2.

1 solution

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