CTET 2 Math and Science 23 Dec 2021 Paper

The perimeter of the square =4× Side
⇒30=4×‌ Side ‌
⇒30∕4‌cm=‌ Side ‌
The area of square = Side × Side
⇒ The area of the square =30∕4×30∕4
The perimeter of the equilateral triangle =3× Side ⇒30=3× side
⇒10‌cm= side
⇒ The area of the equilateral triangle =‌

√‌3

4

×(‌ Side ‌)2
⇒ The area of the equilateral triangle =‌

√‌3

4

×(10)2
The area of the square : The area of the equilateral triangle
‌

900

16

:‌

100√3

4

⇒9:4√3
∴ The ratio of the area of the square to that of the triangle is 9:4√‌3
The correct option is 2 i.e. 9:4√3