Pythagorean theorem practice game

The two shorter sides of a right triangle are given and your child finds the length of the longest side among four. The answers are always whole numbers.

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ages 14-15✓ Free, no account, no ads✈️ Works offline

What your child practises

Applying the Pythagorean theorem
Finding the hypotenuse
Recognising Pythagorean triples

Supports the Pythagorean theorem in lower secondary.

How to play

Four options, only one correct. A mistake costs nothing, but a streak of right answers does count: that is what makes you progress.

Install Poroki on your phone or tablet

Once installed, Poroki opens from the home screen like an app and works without internet: in the car, on a plane, at the grandparents'. No app store, no account, no ads.

✈️ Plays offline

📱 An icon on the home screen

🔒 No data collected on your child

Parents' questions

Is Pythagoras really free?

Yes. Poroki is free, with no ads and no in-game purchases. It is funded by voluntary donations.

What age is it for?

Pythagoras is designed for children aged 14-15. The level adapts to your child's answers.

Can my child play without internet?

Yes. Install Poroki from your browser to the home screen and every game then works offline.

Do I need an account?

No. Your child can play straight away. An optional parent space, with no email address, lets you follow progress and set play time.

Pythagorean theorem practice game

What your child practises

How to play

More games for ages 14-15

Install Poroki on your phone or tablet

Parents' questions

This game is also available in