4 - 1 1/4 A. 3 1/4 B. 3 3/4 C. 2 3/4 D. 2 1/4
2 answers:
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Answer:
a) , b)
, c)
, d)
Step-by-step explanation:
a) The perimeter is the sum of the three sides of the internal square and the remaining sides of the external rectangle, that is:
b) The perimeter is the sum of the two sides of the internal triangle and the remaining sides of the external rectangle, that is:
c) The perimeter is the sum of the two sides of the circular section and the three sides of the lower rectangle, that is:
d) The perimeter is the sum of the external sides of the triangle and rectangle, that is: