3. Rectangular Prism :
SA = 2(l×w)+2(l×h)+2(w×h)
SA =
SA=
SA=
SA =
4.Cylinder:
SA = 2πr + 2πrh
SA=
SA =
SA=
SA=
5.Cone:
SA =πrs + πr2
SA =
SA=
SA=
SA=
SA =
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Answers & Comments
Answer:
3.RECTANGULAR PRISM
SA=2(l×w)+2(l×h)+2(w×h)
SA=2(5×2)+2(5×3)+2(2×3)
SA=2(10)+2(15)+2(6)
SA=20+30+12
SA=62cm²
4.CYLINDER
SA=2πr + 2πrh
SA=2(3.14×2) + 2(3.14)(2)(10)
SA=2(6.28) + 2(3.14)(20)
SA=12.56 + 125.6
SA=138.16m²
5.CONE
SA=πrs + πr2
SA= 3.14(4)(6) + 3.14(4)2
SA= 3.14(24) + 3.14(8)
SA= 75.36 + 25.12
SA= 100.48cm²
Step-by-step explanation:
π is equivalent to 3.14
L stands for length
W stands for width
H stands for height
R stands for radius
S stands for slant
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