Question

*What is the area of ​​a square formed by adding nine tiles of 60 cm perimeter each?*

1️⃣ 32400 sq.cm
2️⃣ 8100 sq.cm
3️⃣ 2025 sq.cm.
4️⃣ 3000sq.m.​

Answer 1

Given,

Perimeter of each tile = 60cm

so, side of each tile = perimeter/4

= 60cm/4 = 15 cm

so, side of each tile is 15cm.

Now, area of 1 tile = side×side

=15cm×15cm = 225cm²

and area of 9 tiles = 225cm²×9

=2025 cm²

hence, area of nine tiles is 2025cm²