Skip to content

Course home

1.7.5 Area of a triangle

Card 1 of 23

Which angle must be used with two chosen sides in the sine area formula?

A

The included angle between the two sides.

B

Yes - the perpendicular may meet the extended base.

C

It is the perpendicular component of side bbb.

D

From A=12absin⁡CA=\frac12ab\sin CA=21​absinC, the missing side is b=2Aasin⁡C\boxed{b=\frac{2A}{a\sin C}}b=asinC2A​​.

Card 1 of 23

1.7.5 Area of a triangle Flashcards

  1. A Level
  2. /Maths
  3. /1.7.5 Area of a triangle

23 flashcards on OCR (MEI) A Level Maths 1.7.5 Area of a triangle: the key formulae, methods and definitions you need to recall for Component 01, Component 02 and Component 03.

Flashcards