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Shalnov [3]
2 years ago
15

Perimeter of a triangle is 27 cm if two sides measure 9cm and7.8cm find the measure of third side

Mathematics
2 answers:
jeka57 [31]2 years ago
8 0

perimeter = sum of all sides

27 = 9+7.8+x

x (third side) = 10.2

Karo-lina-s [1.5K]2 years ago
5 0

Answer:

10.2cm

Step-by-step explanation:

9+7.8= 16.8cm

27-16.8= 10.2 cm

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