Could someone check if this is right - Radians C2

Arc length, area of sector and area of segment for Core 2

1. To work out an arc length the angle MUST be in radians
2. To work out the area of a sector the angle MUST be in radians

What about the area of a segment radians or degrees?

Reply 1

Sohail96

Original post by Ysky

From C2 and beyond pretty much everything has got to be in radians, unless the question tells you to use degrees (sometimes only)

Reply 2

Tytrox

Original post by Ysky

Not necessarily:

For a segment, simply find area of sector, then find area of triangle, then minus triangle from sector. Doesn't matter wether you use radians or degrees.

Hope this helps.

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Reply 3

Ysky

Original post by Tytrox

Not necessarily:

For a segment, simply find area of sector, then find area of triangle, then minus triangle from sector. Doesn't matter wether you use radians or degrees.

Hope this helps.

Thanks