Question

18 Find the length of each side of an equilateral triangle having an area 4
3 cm​

Answer 1

Step-by-step explanation:

8 cm

36 cm

4 cm

6 cm

Answer :

D

Solution :

(d) Given, are of an equilateral triangle=93–√cm2Given, are of an equilateral triangle=93cm2

∵Area of an equilateral triangle=3–√4(Side)2∵Area of an equilateral triangle=34(Side)2

⇒3–√4(Side)2=93–√⇒34(Side)2=93

⇒(Side)2=36⇒(Side)2=36

∴Side=6cm∴Side=6cm

[taking positive square root becuase side is always positive][taking positive square root becuase side is always positive]

Hence, the length of an equilateral triangle is 6cm.Hence, the length of an equilateral triangle is 6cm.