UPSKILL MATH PLUS
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Learn more1. The semi-perimeter of a triangle having sides \(15 \ cm\), \(20 \ cm\) and \(25 \ cm\) is:
2. If the sides of a triangle are \(3 \ cm\), \(4 \ cm\) and \(5 \ cm\), then the area is:
3. The perimeter of an equilateral triangle is \(30 cm\). The area is:
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