31. What is the area of a circle with a diameter of 5 meters?
A. 19.625 sq.m
B. 196.25 sq.m
C. 15.7 sq.m
D 1.57 sq.m Kailangan ang tanong na ito
A. 19.625 sq.m
B. 196.25 sq.m
C. 15.7 sq.m
D 1.57 sq.m Kailangan ang tanong na ito
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Answer:
A 19.625
Step-by-step explanation:
Using the formulas
A=πr2
d=2r
Solving forA
A=1
4πd2=1
4·π·52≈19.63495m²