Answer:
Step-by-step explanation:
11. SA = 2(bh) + B where B is the Area of the base
= 2(6)(12) + (6^2) = 144 + 36 = 180 m^2
12. SA = 2 (3.14)(rs) + (3.14)(r^2)
= 2(3.14)(7)(9) + (3.14)(49)
= 2(3.14)(63) + 153.86
= 395. 64 + 153.86
= 549.5 cm^2
13. SA = 2(3.14)rh + 2(3.14)r^2
= 2(3.14)(4)(10) + 2(3.14)(4 ^2}
= 251.2 + 100.48
= 351.68 m^2
14. SA = 6(s^2) = 6(12^2) = 6(144) = 864 cm^2
15. SA = 2(LW) + 2(LH) + 2(WH)
= 2 (10)(6) + 2(10)(4) + 2(6)(4)
= 120 + 80 + 48
= 248 m^2
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Answers & Comments
Answer:
Step-by-step explanation:
Answer:
11. SA = 2(bh) + B where B is the Area of the base
= 2(6)(12) + (6^2) = 144 + 36 = 180 m^2
12. SA = 2 (3.14)(rs) + (3.14)(r^2)
= 2(3.14)(7)(9) + (3.14)(49)
= 2(3.14)(63) + 153.86
= 395. 64 + 153.86
= 549.5 cm^2
13. SA = 2(3.14)rh + 2(3.14)r^2
= 2(3.14)(4)(10) + 2(3.14)(4 ^2}
= 251.2 + 100.48
= 351.68 m^2
14. SA = 6(s^2) = 6(12^2) = 6(144) = 864 cm^2
15. SA = 2(LW) + 2(LH) + 2(WH)
= 2 (10)(6) + 2(10)(4) + 2(6)(4)
= 120 + 80 + 48
= 248 m^2