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stiks02 [169]
3 years ago
12

one day, the temperature in Philadelphia was at 21 degrees and the temperature in Detroit was -7 degrees. How much lower was the

temperature in Detroit than in Philadelphia
Mathematics
1 answer:
skelet666 [1.2K]3 years ago
6 0

Answer:

21-(-7)=28

Step-by-step explanation:

1. Do same, change, opposite.

21-(-7)

21+7

=28

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So the surface area is for the figure itself, and I just need to find the height. Please help!! (Geometry problem)
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ok so base=a^2
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we also need the small rectangles on side which is 1/2a times a times 2 since 2 of them=a^2 so a^2+4a^2=5a^2
now to find the corner bit in terms of a
use some imagination and lines to find legnths, right triangles and hypotonuse
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8 0
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