IDNLearn.com is designed to help you find accurate answers with ease. Ask anything and receive thorough, reliable answers from our community of experienced professionals.
Answer:
Step-by-step explanation:
Area of base = 0.5×9×12 = 54 cm²
Hypotenuse of base = √(9²+12²) = 15
Lateral surface area = 10(9+12+15) = 360 cm²
Total surface area = 2×54 + 360 = 468 cm²