1. Which one of the following is a true statement about a circle inscribed in a regular polygon?
a)The sides of the polygon are chords of the circle
b) The area of the circle is equal to the area of the polygon
c)The vertices of the polygon are on the circumference of the circle
d)The sides of the polygon are tangents of the circle
4.What is the area of a sector of a circle that has a diameter of 10 in. if the length of the arc is 10in.?
a)25sq in
b)50sq in.
c)75sq in.
d)100sq in.
10. if an area in the form of a circle is to be roped off by a rope 10 m long, what will be the radius of this area? round your answer to two decimal places
a)0.31m
b)1.59m
c)2.56m
d)3.18m
16.find the diameter of a circle whose circumference is 18.85m
a)2.45m
b)3.46m
c)6m
d)12m
17.what is the approximate area of a segment of a circle with a height 6m and the length of the chord is 20m? round your answer to the nearest whole number
a)8.54m2
b)73.6m2
c)85.4m2
d)746.67m2
18. what is the area of an ellipse with the major axis 20m and the minor 10m? round your answer to the nearest whole unmber
a)50m2
b)157m2
c)200m2
c)314m2
19.A part of a circle bounded by an arc and a chord is a
a)radian
b)secant
c)sector
d)segment
2006-08-04 08:33:33 · 1 answers · asked by Anonymous in Education & Reference ➔ Other - Education
Answer to #1 is A
2006-08-04 08:40:40 · answer #1 · answered by Patricia D 6 · 1⤊ 0⤋