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  • Territorial Army Officers Exam Elementary Mathematics Study Material

Digitization help student to explore and study their academic courses online, as this gives them flexibility and scheduling their learning at their convenience. Kidsfront has prepared unique course material of Elementary Mathematics Circles for Territorial Army Officers Exam student. This free online Elementary Mathematics study material for Territorial Army Officers Exam will help students in learning and doing practice on Circles topic of Territorial Army Officers Exam Elementary Mathematics. The study material on Circles, help Territorial Army Officers Exam Elementary Mathematics students to learn every aspect of Circles and prepare themselves for exams by doing online test exercise for Circles, as their study progresses in class. Kidsfront provide unique pattern of learning Elementary Mathematics with free online comprehensive study material and loads of Territorial Army Officers Exam Elementary Mathematics Circles exercise prepared by the highly professionals team. Students can understand Circles concept easily and consolidate their learning by doing practice test on Circles regularly till they excel in Elementary Mathematics Circles.


Circles
A sector of 110, cut out from a circle, has an area of 44/7 sq. cm. Find the radius of the circle.

a) 5 cm
b) 2 cm
c) 4 cm
d) 3 cm



Answer
Correct Answer Is : 2 cm
Solution Is :
The number of points that can be drawn through three non-collinear points is:

a) Zero
b) Only One
c) Two
d) Three



Answer
Correct Answer Is : Only One
Solution Is :
Two circles are said to be concentric, if:

a) They have the same radius
b) They have the same radii
c) They have the same center
d) Their centers are colinear



Answer
Correct Answer Is : They have the same center
Solution Is :
Give two concentric circles with center O. A line cut the circles at A, B, C, D, respectively if AB = 10 cm, then length CD is:

a) 5 cm
b) 7.5 cm
c) 10 cm
d) None of these



Answer
Correct Answer Is : 7.5 cm
Solution Is :
A chord of a circle divides the circular region into two parts, the region which contains the center is known as:

a) Major arc
b) Minor arc
c) Major segment
d) Minor segment



Answer
Correct Answer Is : Major segment
Solution Is :
Two concentric circles form a ring. The inner and outer circumferences of the ring are 264/7 m and 440/7 m respectively. Find the width of the ring.

a) 4 cm
b) 5 cm
c) 3 cm
d) 6 cm



Answer
Correct Answer Is : 4 cm
Solution Is :
The inner circumference of a circular race track, 15m wide, is 880 m. Find the radius of the outer circle.

a) 150 m
b) 155 m
c) 158 m
d) 159 m



Answer
Correct Answer Is : 155 m
Solution Is :
A wheel makes 1000 revolutions in covering a distance of 132 km. Find the radius of the wheel.

a) 20 m
b) 22 m
c) 21 m
d) 23 m



Answer
Correct Answer Is : 21 m
Solution Is :
The area of a circular field is 13.86 hectares. Find the cost of fencing it at the rate of Rs. 4.40 per meter.

a) Rs. 5800
b) Rs. 5806
c) Rs.5808
d) Rs. 5810



Answer
Correct Answer Is : Rs.5808
Solution Is :
If the radius of the circle is decreased by 50%, find the percentage decrease in its area.

a) 25%
b) 50%
c) 75%
d) 100%



Answer
Correct Answer Is : 75%
Solution Is :
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