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Veronika [31]
3 years ago
15

Whats the answer? 1. (∗ +2b)^2 = a^2+4ab+4b^2

Mathematics
1 answer:
pishuonlain [190]3 years ago
6 0

Answer:

* = a

Step-by-step explanation:

(a+2b)(a+2b)\\a^{2} +2b+2b+4b^{2}\\a^{2}+4b+4b^{2}

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a regular rectangular pyramid has a base and lateral faces that are congruent equilateral triangles. it has a lateral surface ar
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by the Pythagorean theorem: 

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but x^{2} is exactly the base area, since the base is a square of sidelength = x cm.


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Answer: 24 \sqrt{3}+72   cm^2

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2 years ago
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irinina [24]
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