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? $$30cm^2$$$$50cm^2$$$$70cm^2$$$$55cm^2$$$$60cm^2$$

 2 HARD The following triangle is equilateral. Which of the following is closest to its area? 187 cm squared186 cm squared188 cm squared190 cm squared185 cm squared

 3 HARD The following triangle is isoceles. Which of the following is closest to its area? 24 centimeters squared36 centimeters squared20 centimeters squared27 centimeters squared54 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?