What is Shape Corners?

A geometry counting game: a shape is drawn and you choose its number of corners (vertices) from a few numeric options, building a streak as you go.

Everything from the circle (0 corners) and triangle (3) up to the nonagon (9) and decagon (10), plus the quadrilateral family · rhombus, trapezoid, parallelogram, kite · and compound outlines like the star, cross, arrow, crescent and semicircle.

How many corners does the star have?

Ten. The five-pointed star is drawn with five outer points and five inner corners, and the game counts every corner where two sides meet · so counting all ten is the right answer.

How does it get harder?

Higher difficulty brings in shapes with more corners that need careful counting, and adds more numeric choices sitting closer to the right answer.

How does my progress save?

Your best streak is stored locally in your browser. Sign in to sync it across devices.

Shape Corners

三角形、六角形、星、矢印 · 現れた図形の角の数を答えよう。数えと図形感覚を、ワンタップで

FAQ

About PlayMemorize Shape Corners

Shape Corners is a geometry and counting game. A single figure is drawn on screen · a triangle, a square, a hexagon, an arrow · and you pick how many corners (vertices) it has from a few numbers. Build a streak by counting each shape correctly; one wrong answer ends the run.

Counting and geometry. Counting corners is how we first learn to tell polygons apart. The game reinforces the link between a shape's visual form and its numbers · a pentagon has five corners, a decagon ten, and a circle none at all. Every figure is drawn exactly as it is scored: the ten-cornered star really shows ten corners, five points and five inner corners.

Gets harder as you go. Easy rounds use familiar low-count shapes with clearly different options. As difficulty climbs, the careful-counting outlines join in · nonagon, decagon, star, cross · and the numeric choices sit closer together, so a quick glance is no longer enough.

Part of the PlayMemorize family · runs in your browser and works offline as a Progressive Web App.

FAQ

What is Shape Corners?

A geometry counting game: a shape is drawn and you choose its number of corners (vertices) from a few numeric options, building a streak as you go.
Which shapes appear?

Everything from the circle (0 corners) and triangle (3) up to the nonagon (9) and decagon (10), plus the quadrilateral family · rhombus, trapezoid, parallelogram, kite · and compound outlines like the star, cross, arrow, crescent and semicircle.
How many corners does the star have?

Ten. The five-pointed star is drawn with five outer points and five inner corners, and the game counts every corner where two sides meet · so counting all ten is the right answer.
How does it get harder?

Higher difficulty brings in shapes with more corners that need careful counting, and adds more numeric choices sitting closer to the right answer.
How does my progress save?

Your best streak is stored locally in your browser. Sign in to sync it across devices.