Shaded Area in a Triangle

A triangle is broken down into smaller triangles and the upside-down triangle is shaded yellow as shown. This pattern continues for 10 iterations. If the total shaded area after the 4th iteration is 18500.2985, what is the area of the shaded area after the 10th iteration? Please provide your answer to the nearest whole number.


The answer is 25539.

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1 solution

Nice problem. I really enjoyed solving it. Thank you.

Hosam Hajjir - 4 months, 1 week ago

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Glad you enjoyed it!

A Former Brilliant Member - 4 months, 1 week ago

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