Question

Two sides of a triangle are 5 cm and 4 cm. The perimeter of the triangle is 12 cm. The third side has length 

(a) 1 cm

(b) 2 cm

(c) 3 cm

(d) 6 cm.​

Answer 1

Answer:

c) 3cm

Step-by-step explanation:

perimeter of the triangle = 12cm

sum of the length of its two sides = 5cm + 4cm

                                                        = 9cm

Therefore, the third side = 12cm - 9cm

                                         = 3cm

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