1. HARD

Sona collects 3 sticks of lengths 5cm, 12cm, and 13cm. The triangle that she makes contains a right angle. What is the area of this triangle?

  1. \(30cm^2\)
  2. \(50cm^2\)
  3. \(70cm^2\)
  4. \(55cm^2\)
  5. \(60cm^2\)
 
2. HARD

The following triangle is equilateral. Which of the following is closest to its area?

  • 187 cm squared
  • 186 cm squared
  • 188 cm squared
  • 190 cm squared
  • 185 cm squared
    		•
     
    3. HARD

    The following triangle is isoceles. Which of the following is closest to its area?

  • 24 centimeters squared
  • 36 centimeters squared
  • 20 centimeters squared
  • 27 centimeters squared
  • 54 centimeters squared
    		•
     
    4. HARD

    You have an isoceles triangle with side lengths 5, 5 and 6. If the three heights of the triangle are 4, 4.8, and 4.8, what is the area of the triangle?


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