1. UNIT 2ANGLESby Maria AdroverCEIP S'ALGAR. PORTOCOLOMGeometry 4th_Unit 2_Angles

2. DEFINITION When two straight lines meet they form fourangles 3. PARTS OF AN ANGLE An angle has got a vertex and two arms 4. MEASURING ANGLES 5. RIGHT ANGLES When two perpendicular lines meet formfour right angles A right angle is 90 6. ACUTE AND OBTUSE ANGLES Smaller angles than 90 are called acute. Bigger angles than 90 are called obtuse. 7. ACUTE AND OBTUSE ANGLES Smaller angles than 90 are called acute. Bigger angles than 90 are called obtuse.