The diagram shows a quadrilateral $$$P Q R S$$$ formed from two triangles, $$$P Q S$$$ and $$$Q R S$$$. Calculate the area of quadrilateral $$$P Q R S$$$. ....................................... $$$\mathrm{cm}^{2}$$$

Mathematics

IGCSE&ALevel

CAIE

Exam No：0580_m20_qp_42 Year：2020 Question No：8(a)(iii)

Answer:

$20.4$ or $20.35$ to $20.36 \ldots$

E6.4 Solve problems using sine and cosine rules and the area formula for triangles.

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