Soln: i. D PQR = D PSR i. PR divides ||gm area into equal...
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Showing posts with label Comp. Mathematics IX. Show all posts
Showing posts with label Comp. Mathematics IX. Show all posts
Q. How much is more the value including 30% VAT on Rs. 2700 than Rs. 3060.
Soln: Value on Rs.2700 with 30% VAT = 2700 + 30% of 2700 = 2700 + 0.3*2700 = 2700 + 810 = 3510 More value = 3510 – 3060 ...
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Q. In the given figure, ABCD is a parallelogram and bisector of angle A bisects the side BC at P. Prove that AD = 2AB.
Soln: i. <DAP = <PAB i. AP bisects <A ii. <DAP = <APB ii. Being alternate angles iii. <PAB = <APB iii...
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Q. In the adjoining figure, it is given that PQ=PR, MR=QN and ML||PN. Prove that MN and QL bisect each other.
Soln: <PQL = <MLR Being corresponding angles. ML = MR ...
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Q. In given XYZ, XE is the bisector of angle YXZ. If YO perpendicular to XE and OM||XZ, prove that YM = MZ.
Soln: Constrution: Join O and A 1. In r s XYO and XAO i. <YXO = <AXO (A) i. XE is bisector of ...
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Q. Find unknown sizes of the angles.
Soln: < PQR = < QRS [∵ PQ || RS, being alternate angles] or, y = 2x From r PQR, < PQO + < OPQ = ...
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