Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 1 - No. 7)
Consider a parallelogram with sides of length 5cm and 11cm, and the angle between adjacent sides is 30 degrees. Which trigonometric rule or formula would you use to find the area?
Pythagorean theorem
The Sine Rule
The Cosine Rule
Area of a parallelogram = ab*sinC
Giải thích
The area can be found using the formula ab*sinC.