Question

Can u guys pls help me on this question and pls explain how u got the answer

Answer 1

17.4 cm²

Explanation:

base = 3x2.6x0.5 = 3.9 cm²

3 sides = 3(3)(3)(0.5) = 13.5 cm²

13.5 + 3.9 = 17.4 cm²