Picture Perfect

Autor:wotton.dorothea.18

The Problem:

A 9-by-12 rectangular picture is framed by a border of uniform width. Given that the combined area of picture plus frame is 180 square units, find the width of the border.

Nuevos recursos

apec
Publish app "Public" test
Viviani's Curve
bewijs stelling van Pythagoras
Rolling Circles and Polygons

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Problem #12
การแยกตัวประกอบของพหุนาม
กราฟสมการเชิงเส้น
Methods Assignment Wilmien

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Inecuaciones
Sucesiones y Series
Vectores 3D (tres dimensiones)
Números Racionales
Funciones Polinómicas