What is the approximate angular diameter of venus when it is a very slim crescent? (measure full diameter of the planet, not just the crescent) a. 15â b. 30â c. 60â d. 60â?

This year Venus was slim crescent in March when the Earth-Venus was about   (the minimum distance)
To find its angular diameter we apply the trigonometry

where D=21000 km is the planet diameter and L is the distance to the planet. For small angles we consider

Thus the angular diameter of venus when it was slim crescent was

In degrees this is 

We know that 3600 seconds correspond to 1 degree. Therefore

Hence

Therefore the angular diameter of Venus when it was slim crescent was 60''.

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