If perimeter of a triangle is 100cm and the length of two sides are 30cm and 40cm, the length of third side will be:
Question
(a)30cm
(b)40cm
(c)50cm
(d)60cm
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Class 10 Maths
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2021-12-29T13:19:42+00:00
2021-12-29T13:19:42+00:00 1 Answer
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Answer ( 1 )
Answer: a
Solution: Perimeter of triangle =
sum of all its sides
P = 30+40+x
100=70+x
x=30cm