The side of an isosceles triangle is 25 and the base is 30. Find the area of this triangle.
| August 10, 2021 | education
To solve the problem, you need to know the height.
1. From the top of the triangle, lower the height to the base.
2. Determine the value of its length.
√ (25² – (30/2) ²) = √ (625 – 225) = √400 = 20 centimeters.
3. Let’s calculate what is the area of the triangle.
30 * (20/2) = 300 cm².
Answer: 300 square centimeters.
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