NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 39 - 39 of 2000

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Question number: 39

» Mathematics » Lines and Angles

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Question

In the adjoining figure, BO, CO are angle bisectors of external angles of . Then is

Triangle poly1 Triangle poly1: Polygon A, B, C Triangle poly2 Triangle poly2: Polygon B, O, C Arc e Arc e: Semicircle through J and K Arc f Arc f: Semicircle through L and M Segment c Segment c: Segment [A, B] of Triangle poly1 Segment a Segment a: Segment [B, C] of Triangle poly1 Segment b Segment b: Segment [C, A] of Triangle poly1 Segment c_1 Segment c_1: Segment [B, O] of Triangle poly2 Segment b_1 Segment b_1: Segment [O, C] of Triangle poly2 Segment d Segment d: Segment [C, B] of Triangle poly2 Segment g Segment g: Segment [B, P] Segment h Segment h: Segment [C, Q] Point A A = (0.2,2.08) Point A A = (0.2,2.08) Point A A = (0.2,2.08) Point B B = (-1.96, -0.94) Point B B = (-1.96, -0.94) Point B B = (-1.96, -0.94) Point C C = (2.18, -0.98) Point C C = (2.18, -0.98) Point C C = (2.18, -0.98) Point O O = (0.1, -3.1) Point O O = (0.1, -3.1) Point O O = (0.1, -3.1) Point P P = (-3.14, -2.68) Point P P = (-3.14, -2.68) Point P P = (-3.14, -2.68) Point Q Q = (3.2, -2.54) Point Q Q = (3.2, -2.54) Point Q Q = (3.2, -2.54) 1 text1 = “1” 2 text1_1 = “2” 3 text1_2 = “3” 4 text1_3 = “4”

Image of Triangle ABC with Another Triangle BOC in It

Representing the image of triangle ABC with another triangle BOC in it

Choices

Choice (4) Response

a.

b.

c.

d.

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