Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 349 - 350 of 989

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Question 349

Mathematics
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Question

MCQ▾

In the figure, the bisector of B and C meet at O. Then is

Triangle poly1Triangle poly1: Polygon A, B, CTriangle poly2Triangle poly2: Polygon B, O, CArc eArc e: Semicircle through D and EArc fArc f: Semicircle through E and FArc gArc g: Semicircle through G and HArc hArc h: Semicircle through H and ISegment cSegment c: Segment [A, B] of Triangle poly1Segment aSegment a: Segment [B, C] of Triangle poly1Segment bSegment b: Segment [C, A] of Triangle poly1Segment c_1Segment c_1: Segment [B, O] of Triangle poly2Segment b_1Segment b_1: Segment [O, C] of Triangle poly2Segment dSegment d: Segment [C, B] of Triangle poly2Point AA = (0.2,2.08) Point AA = (0.2,2.08) Point AA = (0.2,2.08) Point BB = (-1.96, -0.94) Point BB = (-1.96, -0.94) Point BB = (-1.96, -0.94) Point CC = (2.18, -0.98) Point CC = (2.18, -0.98) Point CC = (2.18, -0.98) Point OO = (0.18,0.16) Point OO = (0.18,0.16) Point OO = (0.18,0.16) 1text1 = “1”2text1_1 = “2”3text1_2 = “3”4text1_3 = “4”

Image of a Triangle ABC with Interior Triangle BOC

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Question 350

Mathematics
Edit

Question

MCQ▾

In the adjoining figure ABCD, the angles x and y are

Quadrilateral poly1Quadrilateral poly1: Polygon A, B, C, DArc eArc e: Semicircle through E and FArc gArc g: Semicircle through F and GArc hArc h: Semicircle through H and IArc kArc k: Semicircle through I and JSegment aSegment a: Segment [A, B] of Quadrilateral poly1Segment bSegment b: Segment [B, C] of Quadrilateral poly1Segment cSegment c: Segment [C, D] of Quadrilateral poly1Segment dSegment d: Segment [D, A] of Quadrilateral poly1Segment fSegment f: Segment [A, C] Vector uVector u: Vector [K, L] Vector uVector u: Vector [K, L] Vector u_1Vector u_1: Vector [K_1, L_1] Vector u_1Vector u_1: Vector [K_1, L_1] Point AA = (-0.29,1.98) Point AA = (-0.29,1.98) Point AA = (-0.29,1.98) Point BB = (3.73,2.13) Point BB = (3.73,2.13) Point BB = (3.73,2.13) Point CC = (4.65,4.91) Point CC = (4.65,4.91) Point CC = (4.65,4.91) Point DD = (0.8,4.71) Point DD = (0.8,4.71) Point DD = (0.8,4.71) 70â°text1 = “70â°”20â°text1_1 = “20â°”ytext1_2 = “y”xtext1_3 = “x”

Image of an Adjoining Figure ABCD

Choices

Choice (4)Response

a.

b.

c.

d.