The sides of a triangle are 13cm and 12cm and its semi perimeter is 15cm.
Then third side of the triangle is
a) 6cm b) 7cm
c) 5cm
d) 10cm
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0
Answer:
it's wrong question. Thanks
Answered by
1
Answer:
Option c) 5 cm
The third side is 5.
Step-by-step explanation:
Let the third side be y.
⇒ Semiperimeter = (Side1 + Side2 + Side3)/2
⇒ 15 = (13 + 12 + y)/2
⇒ 15 = (25 + y)/2
⇒ 15 × 2 = 25 + y
⇒ y = 30 - 25
⇒ y = 5
Therefore, the third side is 5.
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