Math, asked by saanvi84, 10 months ago

if the height of an equilateral traingle is 8 cm then calculate the area. please help me with this very urgent​

Answers

Answered by ShahPratham
1

Answer:

see we need base here

Step-by-step explanation:

as we have 3 angles 60˚ 3 sides equal and both triangles are congruent

if u have found any side use this heron's formula

Answered by AwesomeSoul47
8

Answer:

Hey mate here is your answer.....

Area

=

64

3

21.3

c

m

2

Explanation:

Area of an equilateral triangle

=

1

2

b

h

, where:

b

= base

h

= height

We know/

h

=

8

c

m

, but we need to find the base.

For an equilateral triangle, we can find the value for half the base with Pythagoras.

Let's call each side

x

, half the base is

x

2

x

2

(

x

2

)

2

=

8

x

2

x

2

4

=

64

3

x

2

4

=

64

x

2

=

64

4

3

=

256

3

x

=

256

3

=

16

3

3

Area

=

1

2

b

h

=

1

2

x

(

x

2

)

=

x

2

4

=

256

3

2

4

=

256

3

4

=

256

12

=

64

3

21.3

c

m

2

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