Answer:
Area of semi circle = 1/2 ×πr²
π = 3.142 and r = if 10cm
Area = 1/2 × 3.142 × 10²
Area = 1/2 × 3.142 × 100
Area = 3.142 × 50
Area = 157.10cm²
Step-by-step explanation:
Volume of the cylinder ≈ 1470.27
Answer:
This mental multiplication trick uses the idea of a third number - a base number - to help us multiply two numbers in your head. This lesson looks at multiplying numbers near 10 using base 10. Fast Mental Multiplication Trick - Multiply in your head using base 20 and 30 How to multiply numbers near 20 and 30
Hope it helps
Answer:
69
Step-by-step explanation:
it's the holy number jesus christ can confirm
