What is the correct way to name the straight angle in the figure

Figures in 1 and 2 Dimensions

Types of Angles: Acute, Right, Obtuse, Straight, and Reflex

Drawing and measuring angles - KS3 Maths - BBC Bitesize

Corresponding Angles: A Fundamental Geometry Concept

How to Use a Protractor: Your Complete Guide — Mashup Math

Types-of-angles Types of angles, Angles, Type

Reflex Angle - Definition, Degree, Examples

How to Name an Angle: 11 Steps (with Pictures) - wikiHow

Straight Angles

Angle - Wikipedia

Types of Angles Acute, Right, Obtuse, Straight, Reflex, & Complete

Obtuse Angle: Definition, Types & Examples

EASY GEOMETRY** name a straight angle on the figure​

Angle – Definition and Types with Examples