3 years ago

The side length of an equilateral triangle is 20 centimeters. Find the length of altitude of the triangle.

Mathematics

1 answer:

gtnhenbr [62]3 years ago

7 0

Answer:

17.3 cm

Step-by-step explanation:

20² = 10² + x²

400 = 100 + x²

300 = x²

x = 17.3 cm

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