Question

Find area and height of an equilateral triangle of side 9.8 cm.
Please tell me full solution of this question​

Answer 1

Answer:

answer is in the attachkent

Answer 2

Answer: Height = 8.5 and Area = 41.64

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Step-by-step explanation:

Finding height ;

• (9.8) ² = (h)² + (4.9)²
• (h)² = (9.8)² - (4.9)²
• (h)² = 96.04 - 24.01
• (h)² = 72.03
• h = √72.03 by solving at one decimal place
• h = 8.5

       Finding area;

• Area of triangle = 1/2 * base * height
• 1/2 * 9.8 * 8.5
• 4.9 * 8.5  ( By multiplying 1/2 by 9.8)
• 41.64 Answer