Question

8. One side of an equilateral triangle measures 8 cm. Find its area. Also find it
altitude.​

Answer 1

Answer:

all sides of an equilateral triangle are equal .

Hence , if one side is 8 cm , the remaining two will also be equal.

Area of equilateral triangle = √3/4 a²

a = 8 cm

Δ = √3 / 4 × 64

   =16√3

height = ?

area of triangle = 1/2×b×h

Δ=1/2×8×h

Δ=16√3

16√3=1/2×8×h

4h = 16√3

h = 16√3/4

  =4√3 cm

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Answer 2

Answer:

area , 8+8+8/2

12

, √12(12-8)(12-8)(12-8)

√12X4X4X4

16√3

altitude =1/2X8Xh=16√3

h=16√3/4

,4√3

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