Answer:
1. SA=6×S×S
=6×15 dm×15 dm
=1350 sq. dm
2. SA=2×[(L×W)+(L×H)+(W×H)]
=2×[(4cm×3cm)+(4cm×5cm)+(3cm×5cm)]
=2×[(12 sq cm)+(20 sq cm)+(15 sq cm)]
=2×(47 sq cm)
=94 sq. cm
3.SA=2×π×r×h + 2×π×r²
=(2×3.14×5 m×20 m) + (2×3.14×5²)
=(628 sq m) + (157 sq m)
=785 sq. m
Step-by-step explanation:
already explained
hoping it could help you!
lovelots<33
Copyright © 2024 EHUB.TIPS team's - All rights reserved.
Answers & Comments
Answer:
1. SA=6×S×S
=6×15 dm×15 dm
=1350 sq. dm
2. SA=2×[(L×W)+(L×H)+(W×H)]
=2×[(4cm×3cm)+(4cm×5cm)+(3cm×5cm)]
=2×[(12 sq cm)+(20 sq cm)+(15 sq cm)]
=2×(47 sq cm)
=94 sq. cm
3.SA=2×π×r×h + 2×π×r²
=(2×3.14×5 m×20 m) + (2×3.14×5²)
=(628 sq m) + (157 sq m)
=785 sq. m
Step-by-step explanation:
already explained
hoping it could help you!
lovelots<33