Angle Guess
Swing an arm to make an angle by eye, or guess how big a drawn angle is. Every hit in a row tightens the target. 30 levels.
Play nowHow to play
Controls
DragKeyboard←→↑↓- MAKE: drag to swing the yellow arm away from the white one, counterclockwise, and let go when you think the angle matches the number.
- GUESS: slide the dial to the size of the drawn angle and let go.
- You must land within the green margin shown at the bottom; each hit in a row shrinks it by a degree.
- Arrow keys nudge, Enter locks in.
About the game
Angle Guess trains your eye for angles, no protractor allowed. In a MAKE round a number such as 135° appears, and you drag to swing a yellow arm away from a fixed white one, counterclockwise, then let go when the opening looks right. In a GUESS round the angle is already drawn and you slide a dial to the number you think it is. After each try the true answer appears as a green wedge, with how many degrees you were off. Land inside the margin and the round moves on; miss three times and it is over.
The twist is that a streak works against you. The margin starts at fifteen degrees on early levels, and every hit in a row shrinks it by another degree, down to four, while a miss loosens it a little again. Getting within two degrees counts as PERFECT and earns bonus points. Thirty levels start with multiples of 45 on a flat base, move to steps of 15 and 10 with the base arm turned, add reflex angles bigger than a straight line, and mix in GUESS rounds near the end. The hint button gives a reference point, such as a square corner being 90°.
Free to play in your browser. No download, no sign-up. Works on phones, tablets and computers. Your progress is saved on this device.
