Answer:
297 cm²
Step-by-step explanation:
11x11=121
4x1/2x11x8=176
121+176=297
Answer: 10
2x+46+3x-6=90 degrees
5x+40=90 degrees
5x = 50 degrees
x = 10 or 10 degrees
9x9=81, rounding to nearest tenth = 80