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तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएसएसएलसी (अंग्रेजी माध्यम) कक्षा ८

The radius of a circle of diameter 24 cm is _______

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प्रश्न

The radius of a circle of diameter 24 cm is _______

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उत्तर

The radius of a circle of diameter 24 cm is 12 cm

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अध्याय 2: Measurements - Exercise 2.1 [पृष्ठ ५८]

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सामाचीर कलवी Mathematics [English] Class 8 TN Board
अध्याय 2 Measurements
Exercise 2.1 | Q 1. (iv) | पृष्ठ ५८

संबंधित प्रश्न

Fill in the blanks:

The longest chord of a circle is a __________ of the circle.


Two parallel chords are drawn in a circle of diameter 30.0 cm. The length of one chord is 24.0 cm and the distance between the two chords is 21.0 cm; find the length of another chord.


A chord of a circle of radius 14 cm subtends an angle of 120° at the centre. Find the area of the corresponding minor segment of the circle. `[User pi22/7 and sqrt3=1.73]`


From an external point P , tangents PA PB are drawn to a circle with centre O   . If  \[\angle PAB = {50}^o\] , then find  \[\angle AOB\]


In the above figure, seg AB is a diameter of a circle with centre P. C is any point on the circle.  seg CE ⊥ seg AB. Prove that CE is the geometric mean of AE and EB. Write the proof with the help of the following steps:
a. Draw ray CE. It intersects the circle at D.
b. Show that CE = ED.
c. Write the result using the theorem of the intersection of chords inside a circle. d. Using CE = ED, complete the proof. 


Use the figure given below to fill in the blank:

If the length of RS is 5 cm, the length of PQ = _______


Draw circle with diameter:  6 cm

In above case, measure the length of the radius of the circle drawn.


In figure, O is the centre of a circle, chord PQ ≅ chord RS. If ∠POR = 70° and (arc RS) = 80°, find

  1. m(arc PR)
  2. m(arc QS) 
  3. m(arc QSR)


If the radii of two concentric circles are 4 cm and 5 cm, then the length of each chord of one circle which is tangent to the other circle is ______.


In the adjoining figure, Δ ABC is circumscribing a circle. Then, the length of BC is ______


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