15. What is asked in the problem?
A. The surface area of a cubic meter tank
B. The surface area of a rectangular water prism tank
C. The surface area of a conical water tank
D. The surface area of a pyramid
16. What unit is used to measure the surface area of a pyramid?
A. Square centimeter
B. Square meter
C. Square Decimeter
D. Square millimeter
17. What is the surface area of a cube having a side of 8 cm?
A. 354 cm²
B. 364 cm²
C. 374 cm²
D. 384 cm²
18. what is the surface area of a rectangle solid whose height is 6 cm, width is 8 cm, and length is 12 cm?
A. 26 cm²
B. 216 cm²
C. 432 cm²
D. 576 cm²​