3 years ago

10 cm 3 cm I need help with this

Mathematics

1 answer:

kakasveta [241]3 years ago

4 0

Answer:

Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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$A=\frac{1}{2} \times s_1\times s_2\times sin \theta$

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Here PR and QR are adjacent sides and ∠R is the included angle of these sides,

Thus, we can write,

$s_1 = PR= 23\text{ mm}$ , $s_2=QR=39\text{ mm}$ and $\theta = 163^{\circ}$ ,

Thus, the area of the triangle PQR,

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