He discovered that the sum of the angles of a triangle are two right angles and, when his father found out, he relented and allowed Blaise a copy of Euclid .
Siya natuklasan na ang sum ng angles ng isang tatsulok ay dalawang karapatan angles at, kapag ang kanyang ama found out, he relented at pinahihintulutan Blaise ng isang kopya ng Euclid.