Question

areas of two similar triangles are 225 sq.cm. 81 sq.cm. if a side of the smaller triangle is 12cm ,then find corresponding sides of the bigger triangle

Answer 1

Adding the areas =225+81sq.cm
Side of smaller triangle =12cm
Side of the bigger triangle=225+81-12=294cm{Answer}

Answer 2

Before solving this problem, 

We must know 

" The ratio of area of the two similar triangles is equal to ratio of the squares of the corresponding sides" .

Hope it helps you