The height of an equilateral triangle is 6cm find the area of triangle correct to two decimal place (√3=1.732)
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Answer:
20.80 cm^2
Step-by-step explanation:
height of eq triangle=under root 3×a/2
6 =under root 3×a/2
a=6×2/under root 3
a=12/under root 3
area=under root 3×a^2/4
area=under root 3/4×12/under root 3×12/under root 3
area=36/under root 3
area=20.80 cm ^2
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