Question

AABC is an isosceles triangle such that AB = AC and AB : BC:: 13:11. If its perimeter is 259 cm, then
find the length of its sides.
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Answer 1

Answer:

ab = ac

ab :bc :: 13:11

ab:ac:bc ::13:13:11

13+13+11 =37

perimeter = 259

37x = 259

x = 259/37

=7

ratio of side = 13×7:13×7:11×7

= 91:91:77 :: ab:ac:bc

= the sides are 91 cm each and 77 cm