A triangle area (the updated version)

Geometry Level 2

Find the area of the triangle below:

Type your answer. If you forget how to calculate the area of the triangle, you should multiply the base by the height, and then divide by 2. If you still unable to calculate or think the answer doesn't exist, just type 0.

The figure is not to scale.

To clarify: AC = 10.


The answer is 0.

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

2 solutions

Tin Le
May 4, 2019

Remember that: In a right triangle the median line to the hypotenuse is half the hypotenuse. Therefore, the length of the median line BM is 10 2 = 5 \frac{10}{2}=5

We can clearly see a paradox: Although BH is the leg and BM is the hypotenuse, BH > BM (6>5). Therefore, triangle ABC doesn't exist.

Therefore, the area of triangle ABC doesn't exist, too. Since the problem told us to type 0 if the answer doesn't exist, we should type 0 \boxed{0}

Comment: This triangle is a trap!

Or if you know the altitude to the hypotenuse of a right triangle is always smaller than half the hypotenuse, you can clearly see the paradox too.

Tin Le - 2 years, 1 month ago

Very sneaky!! (And well explained, too)

Chris Lewis - 2 years, 1 month ago

Thales theorem using AC as the diameter gives a radius of 5. The altitude can not exceed 5.

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...