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makkiz [27]
3 years ago
10

Please help I don’t understand this and I can’t figure it out.

Mathematics
1 answer:
ryzh [129]3 years ago
7 0
So the groups of angles that make a line (like 130 and i or p a and t) should equal 180. however, the triangles should also equal 180. so in this case for the top row, we know that 130+j=180. since 180-130=50 (i did the inverse of addition, subtraction), j=50. now let’s say for that triangle that your top two angle measures were the 50 we just found and the 70 you have written just as an assumption but i have no clue what you were actually given. since triangles angles must equal 180, 50+70+that angle =180. 50+70=120, so if we do the inverse of 180-120=60, we find out that the bottom angle is 60 degrees.
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dedylja [7]

Answer:

Total surface area of the rectangular  prism is 150.88 cm^2

Step-by-step explanation:

area of base = area of top

area of base = 5 x 3.1 = 15.5 cm^2

Area of small lateral surface having dimensions 3.1 cm x 7.4 cm is

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Area of big lateral surface having dimensions 5 cm x 7.4 cm is

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Total area of prism = 2 x 15.5 + 2 x 22.94 + 2 x 37 = 150.88 cm^2

total surface area of the rectangular  prism is 150.88 cm^2

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3 years ago
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chubhunter [2.5K]

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3 years ago
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12345 [234]

Answer: 28.35\ minutes

Step-by-step explanation:

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3 0
3 years ago
ASAP!! (12y + 8) (5y + 2) 2x st (sy​
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Answer:

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Step-by-step explanation:

the equations containing y are adjacent angles in a parallelogram, meaning that they are supplementary, so we can create an equation:

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3 0
3 years ago
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