IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 983 - 984 of 1022

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Question number: 983

» Everyday Mathematics

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Appeared in Year: 2012

MCQ▾

Question

The side of a square plot is 80 m. A path of 4 m width along the sides of the square are constructed in the middle of the plot. Determine the area of the path.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 984

» Symmetry and Visualizing Solid Shapes

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Appeared in Year: 2012

MCQ▾

Question

The given solid (not drawn to scale) is a regular triangular pyramid. The net of the pyramid is wrongly drawn with 1 extra face. Which of the following faces (P, Q, R or S) is NOT a part of the net?

Quadrilateral poly1 Quadrilateral poly1: Polygon A, B, C, D Polygon poly2 Polygon poly2: Polygon [E, F, 3] Polygon poly2 Polygon poly2: Polygon [E, F, 3] Triangle poly3 Triangle poly3: Polygon H, I, J Polygon poly2_1 Polygon poly2_1: Polygon [E_1, F_1,3] Polygon poly2_1 Polygon poly2_1: Polygon [E_1, F_1,3] Triangle poly4 Triangle poly4: Polygon K, L, M Polygon poly2_4 Polygon poly2_4: Polygon [E_6, F_4,3] Polygon poly2_4 Polygon poly2_4: Polygon [E_6, F_4,3] Segment a Segment a: Segment [A, B] of Quadrilateral poly1 Segment b Segment b: Segment [B, C] of Quadrilateral poly1 Segment c Segment c: Segment [C, D] of Quadrilateral poly1 Segment d Segment d: Segment [D, A] of Quadrilateral poly1 Segment f Segment f: Segment [E, F] of Polygon poly2 Segment g Segment g: Segment [F, G] of Polygon poly2 Segment h Segment h: Segment [G, E] of Polygon poly2 Segment i Segment i: Segment [B, D] Segment j Segment j: Segment [A, C] Segment j_1 Segment j_1: Segment [H, I] of Triangle poly3 Segment h_1 Segment h_1: Segment [I, J] of Triangle poly3 Segment i_1 Segment i_1: Segment [J, H] of Triangle poly3 Segment f_1 Segment f_1: Segment [E_1, F_1] of Polygon poly2_1 Segment g_1 Segment g_1: Segment [F_1, G_1] of Polygon poly2_1 Segment h_2 Segment h_2: Segment [G_1, E_1] of Polygon poly2_1 Segment m Segment m: Segment [K, L] of Triangle poly4 Segment k_1 Segment k_1: Segment [L, M] of Triangle poly4 Segment l_1 Segment l_1: Segment [M, K] of Triangle poly4 Segment f_4 Segment f_4: Segment [E_6, F_4] of Polygon poly2_4 Segment g_4 Segment g_4: Segment [F_4, G_4] of Polygon poly2_4 Segment h_6 Segment h_6: Segment [G_4, E_6] of Polygon poly2_4 P text1 = “P” Q text1_1 = “Q” R text1_2 = “R” S text1_3 = “S”

Image of a Regular Triangular Pyramid and Its Net

Showing the image of a regular triangular pyramid and its net

Choices

Choice (4) Response

a.

P

b.

R

c.

S

d.

Q