Question

Find the value of the major arc ABC when the angle measures 40 degrees ​

Answer 1

Answer:

Step-by-step explanation:

if we draw diameter through A and let it meet the circumference at D .

Let O be the center.

∠DAC=90-40=50°

∠DOC=2×50=100°

arc ABD=180°

arc ABC=180+100=280°