WebWhat is the value of radius, if the area of circle is 78.54 sq cm? Since, radius = √ (Area/π) Given, area = 78.54 sq.cm and π = 22/7 Therefore, Radius = √ (78.54/ (22/7)) Radius = 5 cm (Approximately) If the circumference of a circle is 100 cms, then find the radius? Radius = Circumference/2π R = 100/2π R = 15.92 cm. WebOct 12, 2024 · The topics and sub-topics in NCERT Class 9 Maths Textbook Chapter 10 Circles: Circles. Introduction. Circles And Its Related Terms: A Review. Angle Subtended … Ex 1.4 Class 9 Maths Question 2. Visualise 4.\(\bar { 26 }\) on the number line, upto …
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WebSep 12, 2024 · Circles Class 9 Extra Questions Very Short Answer Type. Question 1. In the figure, O is the centre of a circle passing through points A, B, C and D and ∠ADC = … WebThe topics and sub-topics in NCERT Class 9 Maths Textbook Chapter 10 Circles: Circles. Introduction. Circles And Its Related Terms: A Review. Angle Subtended By A Chord At … dyg bypassing tool
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WebQuestion 9: Find the area of a rhombus of perimeter 60 cm and one of its diagonals is 24 cm. Solution: Let ABCD be the rhombus Length of one diagonal (let AC) = 24 cm. Let the length of sides of rhombus be ‘a’. Perimeter of rhombus = 4a = 60 ⇒ a = 60/4 = 15 cm By the properties of rhombus, diagonals of a rhombus bisect at right angles. WebDiameter of a Circle: A line segment passing through the center of a circle, and having its endpoints on the circle, is called the diameter of the circle. Diameter = 2 × radius. Circumference: The circumference of a circle is the distance around a circle. It is the same as the perimeter of other shapes. Chords of Circles: WebFeb 2, 2024 · This article contains 70 important Multiple Choice Questions with answers that you must read (it is based on CBSE and ICSE syllabus). ... Related: 100 ISRO Quiz Questions And Answers (It’s A Game-Changer) 21. The cross-section of a canal is a trapezium in shape. ... What is the area of a semi-circle of radius 10.5 cm? a) 143.25 cm … crystal-proven gout