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Solve Similar Triangles Calculator

Math

Solve for the unknown sides of a second triangle from a fully known first triangle and one corresponding side.

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0.011,000,000
0.011,000,000
0.011,000,000
0.011,000,000

Scale Factor

2.0000

Ratio between the two triangles, based on the known corresponding pair.

Triangle 2 - Side B

8.0000

Solved second side of triangle 2.

Triangle 2 - Side C

10.0000

Solved third side of triangle 2.

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Calculator Stats

Odeh Ahwal

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Odeh Ahwal
Reviewed and verifiedThis calculator was reviewed and verified by the Calcupedia due diligence team.

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Frequently Asked Questions

What is a real example of this?

A classic use is measuring a tall object indirectly: a person's height and shadow length form one triangle, and the object's shadow length forms the corresponding side of a similar triangle, letting you solve for the object's height without measuring it directly.

Which side of triangle 1 should the known side correspond to?

Enter the triangle 2 side that corresponds to triangle 1's Side A. The scale factor is calculated from that matched pair and then applied to the other two sides.

Does this assume the triangles are already known to be similar?

Yes. This calculator solves the unknown sides assuming similarity, it does not verify similarity first. Use the Similar Triangles Calculator if you need to confirm similarity before solving.

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