Analyzing Criticism and Justification in Evaluations

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Who is the Course Coordinator for the Mathematics Secondary Course at the National Institute of Open Schooling?

Dr. Rajendra Kumar Nayak

Where is the National Institute of Open Schooling located?

A-24-25, Institutional Area, Sector-62, NOIDA-201309 (U.P.)

Who is the Chairman of the National Institute of Open Schooling?

Dr. S.S. Jena

Which organization does Dr. Kuldeep Agarwal work for?

National Institute of Open Schooling (NIOS) Signup and view all the answers

Who is the Secretary of the Curriculum Committee at NIOS?

Prof. Mohan Lal Signup and view all the answers

Where is the DAV College Managing Committee located?

E-182, New Rajendra Nagar, New Delhi-110060 Signup and view all the answers

What is the myth about Examinations?

The myth is that examinations are the only yardstick to measure a student's ability. Signup and view all the answers

What should learners avoid while preparing for Examinations?

Avoid putting unnecessary stress on the mind to prevent Examination Fear. Signup and view all the answers

Why is revising important while preparing for Examinations?

Revising allows students to recall what has been studied and helps in recollecting the main points of each lesson. Signup and view all the answers

What is crucial for every learner before Examinations?

The time before Examinations is the most crucial for every learner. Signup and view all the answers

What should learners concentrate on instead of cramming all details?

Concentrate on the main points of each lesson or study material. Signup and view all the answers

What is the truth about Examinations according to the text?

Examinations are just one technique among many others to assess a student's competency. Signup and view all the answers

Define Natural Numbers.

Counting numbers 1, 2, 3, 4, ... Signup and view all the answers

What are Whole Numbers?

Natural numbers including 0. Signup and view all the answers

Explain Integers.

Whole numbers including negatives of natural numbers. Signup and view all the answers

What is a Rational Number?

A number p/q where p and q are integers and q ≠ 0. Signup and view all the answers

What is the standard form of a rational number?

p/q is in standard form if q is positive and p, q are co-prime. Signup and view all the answers

Is every integer a rational number?

Yes Signup and view all the answers

What is the distance between the two parallel chords PQ and RS?

14cm Signup and view all the answers

If two circles with centers O and O' intersect at points A and B, what can you prove about angles ∠OAO' and ∠OBO'?

∠OAO' = ∠OBO' Signup and view all the answers

When two equal chords of a circle intersect inside the circle, what can you prove about the line joining the point of intersection to the center?

It makes equal angles with the chords. Signup and view all the answers

If two chords AB and AC of a circle are equal, where is the center of the circle located?

On the angle bisector of ∠BAC. Signup and view all the answers

When two circles intersect at two points, where are their centers located?

On the perpendicular bisector of the common chord. Signup and view all the answers

In a circle with parallel chords AB and CD on opposite sides of the center, if AB=10cm, CD=24cm, and the distance between them is 17cm, what is the radius of the circle?

13cm Signup and view all the answers

What is the value of x and y in parallelogram ABCD?

290, 780 Signup and view all the answers

If three angles of a quadrilateral measure 540, 1100, and 860, what is the measure of the fourth angle?

2500 Signup and view all the answers

In figure ABCD, if ∠DPC = 800, what is the value of x?

120º Signup and view all the answers

In figure ABCD is a rhombus, if ∠ABC is 124º, what is the value of x?

26º Signup and view all the answers

In figure ABCD is a rhombus whose diagonals intersect at O. If ∠OAB = 40º and ∠ABO = xº, what is the value of x?

50º Signup and view all the answers

What is the length of each side of a rhombus if the length of the diagonals are 24 cm and 18 cm respectively?

15 cm Signup and view all the answers