Theorem 1 The angle in a semi- circle is a right angle.
Given PQ is a diameter of a circle C(O,r) and is an angle in semi- circle. To prove PROOF We know that the angle subtended by an arc of a circle at its centre is twice the angle formed by the same arc at a point on the circle. So, we have
[ is a straight line] |
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Right Option : A | |||||
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If two diameters of a circle intersect each other at right angles, then quadrilateral formed by joining their end points is a | |||
Right Option : D | |||
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The area of the largest triangle that can be inscribed in a semicircle whose radius is r cm is : | |||
Right Option : B | |||
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One of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
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I have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Abhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
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