Math, asked by student2804, 11 months ago

-. What is the perimeter of an equilateral triangle whose altitude is 10 cm
(1) 20 cm (2) 21 cm (3) 20√3 cm (4) 21√3 cm

Answers

Answered by karanpreetkaur100

2

Answer:

20√3 is the answer....

Step-by-step explanation:

Find the side of equilateral triangle by using phytagoras theroem...the side will be 20/√3......perimeter = sum of 3 sides ...it will be 60/√3

after rationalising we get 20 √3

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