Learn Mathematics Circles, NDA Exam Mathematics Circles Exercise, Free Online Circles Lessons

NDA Exam 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 Mathematics Circles for NDA Exam student. This free online Mathematics study material for NDA Exam will help students in learning and doing practice on Circles topic of NDA Exam Mathematics. The study material on Circles, help NDA Exam 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 Mathematics with free online comprehensive study material and loads of NDA Exam 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 Mathematics Circles.

Circles

If a perpendicular falls on a chord from the center of the circle, it will divide the chord in two ___________.

a) Different parts
b) Equal parts
c) Sometimes
d) None of these

✔Answer

Correct Answer Is : Equal parts

Solution Is :

In the fig, find the Radius OT, if AT=10cm and AO=6cm(AT is tangent)

a) 5cm
b) 6cm
c) 7cm
d) 8cm

✔Answer

Correct Answer Is : 8cm

Solution Is :

What is the formula of Area of Circle?

a) ∏r∧2
b) 2∏r
c) 2∏r∧2
d) 3∏r∧2

✔Answer

Correct Answer Is : ∏r∧2

Solution Is :

The number of common tangents that can be drawn for two externally tangent circles is

a) 1
b) 2
c) 3
d) 4

✔Answer

Correct Answer Is : 3

Solution Is :

Given the circle at the right with designated center, designated perpendicular, and radius 5. Find the length of the segment labeled x

a) 8 cm
b) 7 cm
c) 5 cm
d) 4 cm

✔Answer

Correct Answer Is : 4 cm

Solution Is :

In the same circle, or congruent circles, congruent central angles have congruent arcs.

a) TRUE
b) FALSE
c) Sometimes true or Sometimes false
d) None of these

✔Answer

Correct Answer Is : TRUE

Solution Is :

If the diameter of a circle is 142.8 millimeters, then what is the radius?

a) 71.4
b) 72
c) 71.2
d) 72.4

✔Answer

Correct Answer Is : 71.4

Solution Is :

AD is a diameter of circle and AB is chord. If AD=28cm, AB=22cm, the distance of AB from the center of the circle is :

a) 3√11
b) 3√15
c) 3√13
d) 3√17

✔Answer

Correct Answer Is : 3√15

Solution Is :

If AB=7cm,BC=8cm and AB is perpendicular to BC, then the radius of the circle passing through the points A,B and C is :

a) √115
b) √117
c) √113
d) √114

✔Answer

Correct Answer Is : √113

Solution Is :

ABCD is a cyclic quadrilateral such that AB is a diameter of the circle circumscribing it and ?ADC=140, then ?BAC

a) 10 cm
b) 40
c) 30
d) 80

✔Answer

NDA Exam Mathematics Study Material

Circles

If a perpendicular falls on a chord from the center of the circle, it will divide the chord in two ___________.

Correct Answer Is : Equal parts

Solution Is :

In the fig, find the Radius OT, if AT=10cm and AO=6cm(AT is tangent)

Correct Answer Is : 8cm

Solution Is :

What is the formula of Area of Circle?

Correct Answer Is : ∏r∧2

Solution Is :

The number of common tangents that can be drawn for two externally tangent circles is

Correct Answer Is : 3

Solution Is :

Given the circle at the right with designated center, designated perpendicular, and radius 5. Find the length of the segment labeled x

Correct Answer Is : 4 cm

Solution Is :

In the same circle, or congruent circles, congruent central angles have congruent arcs.

Correct Answer Is : TRUE

Solution Is :

If the diameter of a circle is 142.8 millimeters, then what is the radius?

Correct Answer Is : 71.4

Solution Is :

AD is a diameter of circle and AB is chord. If AD=28cm, AB=22cm, the distance of AB from the center of the circle is :

Correct Answer Is : 3√15

Solution Is :

If AB=7cm,BC=8cm and AB is perpendicular to BC, then the radius of the circle passing through the points A,B and C is :

Correct Answer Is : √113

Solution Is :

ABCD is a cyclic quadrilateral such that AB is a diameter of the circle circumscribing it and ?ADC=140, then ?BAC

Correct Answer Is : 40

Solution Is :

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