Mathematics for IGCSE & O level - Ratio And Proportion (Section 2 - No. 4)
The angles of a triangle are in the ratio 1:2:3. What is the size of the largest angle?
30 degrees
60 degrees
90 degrees
120 degrees
توضیح
Total degrees=180, total ratio= 6. Largest angle is 3/6 * 180 = 90