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1. b is midpoint of 1. given
AC
2. AB = BC 2. if midpoint, then two
congruent lines
3. AB = EF 3. given
4. BC = EF 4. transitive property
Consider one pyramid
Side length of base = 1.5cm and its height is 1 cm
Slant height of one of the lateral faces = sqrt(1^2 + 0.75^2) = 1.25 cm
Area of one of the triangular faces = 0.5 * 1.5* 1.25 = 0.9375 cm^2
There are 8 of these so the required surface area = 8 * 0.9375
= 7.5 cm^2 Answer
Hope this helps good luck!!
Answer:
-12 < -2
Step-by-step explanation:
below sea level means under water which is negative. the snorkler is only 2 feet below sea level which is -2 but the coral reef is 12 feet below sea water which in this case -2 is greater than -12 since its closer to 0
