Question

If the area of an equilateral triangle is 21.2
sq. cm, find the length of its each side.
​

Answer 1

Answer:

6.997

Step-by-step explanation:

Hello!!!

Here's the Answer :

(Given)

Area = 21.2 sq. cm

=>Area of equilateral triangle

Let the length of each side be a cm.

=>\frac {1.732}{4}

4

1.732

× {a}^{2}a

2

= 21.2

=> 1.732 × {a}^{2}a

2

= 21.2 × 4

=> 1.732 × {a}^{2}a

2

= 84.8

=> {a}^{2}a

2

= \frac {84.8}{1.732}

1.732

84.8

=> {a}^{2}a

2

= 48.96

=> a = under root 48.96

=> a = 6.997

Answer 2

Answer:

If the area of an equilateral triangle is 21.2

sq. cm, find the length of its each side.

Step-by-step explanation:

21.2=1/2×b×h

21.2×2=b×h

42.2=b×h