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

Pa helpo​