Question

the area of an equalateral triangle with side 16cm is
​

Answer 1

Answer:

Area=√34a2=√34×16×16=64√3sq.cm. =110.848 = 110.85 sq.

Step-by-step explanation:

As the area ofan equilateral triangleis

4

3

a

2

whereaisoneside

So,

area=

4

3

×16

2

=64

3

Answer 2

Given :

• Side of equilateral Triangle = 16 cm

Formula TO Find :

${\boxed{\bf{ area_{of \: equileteral \: triangle} = \frac{ \sqrt{3} }{4} \: {a}^{2} }}}$

Where ,

• a = side of equilateral Triangle

Solution :

$\implies \sf \: area = \frac{ \sqrt{3} }{4} \: {a}^{2}$

$\implies \sf \frac{ \sqrt{3} }{4} \times {16}^{2}$

$\implies \sf \: \frac{ \sqrt{3} }{4} \: \times 16 \times 16$

$\sf \implies \: \frac{ \sqrt{3} }{4} \times 256$

$\sf \implies \: \frac{256 \times \sqrt{3} }{4}$

$\sf\implies \: \frac{256 \times 1.732}{4}$

$\implies \sf \: \frac{443.41}{4}$

$\bf \implies \: 110.85$

$\therefore \sf area \: of \: equileteral \: triangle \: = 110.85 \: c {m}^{2}$

KNOW MORE :

Formulas To Find Area :

• Circle = πr²

r = radius of the circle

• Triangle = ½ × b × h

b = base, h = height

• Square = a ²

a = length of side

• Rectangle = l × b

l = length, b = breadth

• Parallelogram = b × h

b=base, h=vertical height

• Trapezium = ½(a+b) × h

a and b are the length of parallel sides,

h = height