Answer both questions for brain

Mathematics

2 answers:

yarga [219]3 years ago

5 0

Answer:

19.SA of a cylinder = (2 * π * r²) + (2 * π * r * h)SA = (2 * π * 5²) + (2 * π * 5 * 20)SA = (2 * π * 25) + (2 * π * 5 * 20)SA = (2 * π * 25) + (2 * π * 5 * 20)SA = (157) + (628)SA = 785The answer is A. 785 square meters.20.SA of a rectangle = 2(wl + hl + hw)w = 15l = 4h = 14SA = 2(15*4 + 14*4 + 14*15)SA = 2(60 + 56 + 210)SA = 2(326)SA = 652The answer is B. 652 square centimeters.

Step-by-step explanation: I did the math and this is what I got.

allochka39001 [22]3 years ago

3 0

19.
SA of a cylinder = (2 * π * r²) + (2 * π * r * h)
SA = (2 * π * 5²) + (2 * π * 5 * 20)
SA = (2 * π * 25) + (2 * π * 5 * 20)
SA = (2 * π * 25) + (2 * π * 5 * 20)
SA = (157) + (628)
SA = 785

The answer is
A. 785 square meters.

20.
SA of a rectangle = 2(wl + hl + hw)
w = 15
l = 4
h = 14
SA = 2(15*4 + 14*4 + 14*15)
SA = 2(60 + 56 + 210)
SA = 2(326)
SA = 652

The answer is
B. 652 square centimeters

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