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 = 120°. Find the value of x. Question 2. In the given figure, O is the centre of the circle, ∠AOB = 60° and CDB = 90°. Find ∠OBC. Web9. In Fig, AB and CD are two diameters of a circle (with centre O) perpendicular to each other and OD is the diameter of the smaller circle. If OA = 7 cm, find the area of the shaded region.
Q. In the figure, AB and CD are two diameters of
WebSep 8, 2024 · Let's use some useful circle properties First let's add a blue line, to divide ∠CEB into 2 angles CD is the DIAMETER of the circle Since ∠CED is an inscribed angle containing (aka "holding") the diameter, we can conclude that ∠CED = 90° Now recognize that the intersection of AB and CD creates two equal (vertically opposite) angles, we … WebJan 31, 2024 · If AB and CD are two perpendicular diameters of a circle of radius ... (∵ AB = 2 × 7 cm = 14 cm) ⇒ 49 cm 2 . Now, Area of the bigger circle = (22/7) × 7 × 7 = 154 cm 2. ∴ Area of the shaded region = Area of the bigger circle - (Area of smaller ... More Plane Figures Questions . Q1. A rectangle has an area 30 cm2 and ... gym waiver forms
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WebAug 31, 2024 · In fig., AB and CD are two diameters of a circle (with centre O) perpendicular to each other and OD is the diameter of the smaller circle. If OA = 7 cm, find the area of the shaded region. Asked by Topperlearning User 31 Aug, 2024, 03:09: PM WebAug 25, 2013 · Using the given figure, name 1. the circle 2. 2 diameters 3. 2 chords which are not diameters 4. 2 secants 5. a tangent B. Given: CDAB ⊥ at E CD is 10 cm long. How far is CD from the center if the length of the radius is 1. 13 cm 5. 12 cm 2. 7 cm 6. 10 cm 3. 14 cm 7. 5 2 cm 4. 8 cm 8. 63 cm C. Given: CD is 20 cm long. WebAnother formula to find the circumference is if you have the diameter you divide the diameter by 2 and you get the radius. Once you have the radius you times the radius by 2 and times it by pie and then you get the circumference. Here are the two different formulas for finding the circumference: C = πd. C = 2πr. bpo telecaller jobs work from home