Question

1. If the difference between the length of the longest side and the length of the shortest side is 35cm, find the length of the shortest side. The ratio of the sides is 4:7:9.

2. If a:b= c:d, then (ma+nc) : (mb+nd) is equal to

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Answer 1

Step-by-step explanation:

Let shortest side =a

Then, longest side =3a

Third side =3a−2

Perimeter =a+3a+3a−2=61cm ⇒7a=61+2⇒a=

7

63

=9cm

Hence, shortest side =9cm