protractor
The instrument for measuring the angles of a triangle is called a protractor.
Your question is unclear but one instrument for measuring angles is a protractor.
measuring jug! kettle
a protractor
protractor
An instrument used for drawing and measuring angles
The instrument for measuring the angles of a triangle is called a protractor.
A semicircular instrument for measuring and constructing angles.
Sextant
A protractor is commonly used for drawing and measuring angles. It is a tool with a semicircular shape that is marked with degree measurements. By aligning the center of the protractor with the vertex of the angle, you can accurately measure and draw angles.
A graphometer is a surveying instrument. It is used to measure angles.
Your question is unclear but one instrument for measuring angles is a protractor.
measuring jug! kettle
a protractor
use a protractor to measure angles
It sounds like you are thinking of a protractor. We still use it a lot today, especially in architecture and design. The protractor is a semi-circular measuring instrument used for measuring angles.