Question

ABC is an equilateral triangle of side 20 m. Find each of its altitude


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Answer 1

Answer:

10√ 3m all the altitudes

Step-by-step explanation:

for a equilateral triangle of side a

length of the altitude will be √3 a/2

length of the altitude = √3× 20/2

thus ... length of the altitude = 10√3m

Answer 2

Answer:

if ABC is an equilateral triangle then

AB=BC=CD=20m

perimeter=60m

semi perimeter=30m

(s-a) =30-20=10

(s-b) 30-20=10

(s-c) =30-20=10

area=1/2×base×height

100√3=1/2×20×height

height=100√3×2/20

height=10√3cm(31cm)