Question

ask below the maths and science question up to 9th class level​

Answer 1

Answer:

if x /y = 27

x+y² = 21

find x² - y²

Answer 2

Step-by-step explanation:

If two triangles are similar to each other, then the ratio of the areas of these triangles will be equal to the square of the ratio of the corresponding sides of these triangles. It is given that the sides are in the ratio 4:9. Hence, the correct answer is 16 : 81.