Advertisements
Advertisements
प्रश्न
O is the centre of the circle. CD is a side of a regular octagon. ∠COD = 45°, AB is a side of a regular pentagon. Find ∠AOB.
विकल्प
60°
80°
72°
40°
MCQ
Advertisements
उत्तर
72°
Explanation:
Step 1:
A regular pentagon has n = 5 sides.
Step 2:
The angle ∠AOB is given by `360^circ/n`
`∠AOB = 360^circ/5`
Step 3:
∠AOB = 72°
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
