1. What is the area of a triangle if all its side measures 11cm? A. 51cm^2 B. 52cm^2 C. 53cm^2 D. 54cm^2 2. If the sides of the triangle measures 5cm, 9cm, and 10cm. What is its area? A. 6cm^2 B. 6/10cm^2 C. 6/14cm^2 D. 6/17cm^2 3. Six times the square root of the difference of a number and 5 is 12. Find the number. A. 9 B. 12 C. 18 D. 36 4. Find the number such that twice its square root is -2 A. 1 B. 2 C. - 1 D. No solution