Answer:
the 2nd chart. chart B.
Step-by-step explanation:
edge 2022
Answer:
360mm^2
Step-by-step explanation:
Surface area of a square pyramid= Base area + Lateral area
Base area=10mm × 10mm
=100mm^2
Lateral area = (4) × (1/2) × (10) × √(12) ^ 2 + (5) ^ 2)
= 260 mm^2
Surface area= Base area + Lateral area
=100mm^2 + 260mm^2
= 360mm^2
Answer: 5x²y + 8xy² - 4x² + 3xy - 7y²