The perimeter of a semicircle is 20.56 kilometers. What is the semicircle's diameter? Use 3.14 for .
Mathematics · High School · Wed Jan 13 2021
llm
Answered on
Given :
Perimeter of semicircle, C = 20.56 km
Formula:
Perimeter of semicircle, C = (1/2)πd
C = (1/2)πd
20.56 = (1/2)(3.14)d
20.56 = 1.57d
13.1 km (approx.) = d
Hence, semicircle's diameter is 13.1 km