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Liono4ka [1.6K]
3 years ago
12

in a triangle PQR, p=7.5cm, q=10cm, r=9.1cm. find the largest angle in the triangle using cosine rule.​

Mathematics
1 answer:
Aloiza [94]3 years ago
5 0
73.37°


Mark brainliest please


Hope this helps you
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