Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 35 - CT&AI_CLasa_7_Part_1
P. 35

    a tale of three

                                      7                                  intersecting Lines

                                               computational thinking quest

                    Tick ( ) the correct option.

                      1.  There are three positive  numbers  in each      4.  How many triangles are there in the figure?
                         case. Which of these numbers could possibly                                     (Decomposition)
                         be the lengths of the sides of a triangle?
                                                    (Logical Thinking)

                               (a)  2, 10, 15       (b)  5, 7, 9

                               (c)  1, 8, 9         (d)  2, 5, 7
                                                                                    (a)  9              (b)  10
                      2.  In triangle ABC, 3∠A = 4∠B = 6∠C what are
                         the values of ∠A, ∠B and ∠C?                               (c)  12             (d)  16
                                                    (Critical Thinking)    5.  The two sides of a triangle are 24 cm and 30
                                                                             cm of the third side is x, which of the following
                               (a)  ∠A = 80°, ∠B = 60°, ∠C = 40°
                                                                             is  true?               (Analytical Thinking)

                               (b)  ∠A = 70°, ∠B = 60°, ∠C = 50°                    (a)  18 cm < x < 48 cm

                               (c)  ∠A = 80°, ∠B = 40°, ∠C = 60°                    (b)  18 cm ≤ x ≤ 54 cm

                               (d)  ∠A = 60°, ∠B = 80°, ∠C = 40°                    (c)  18 cm < x < 54 cm
                      3.  Four identical pieces of paper, each shaped               (d)  6 cm < x < 54 cm
                         like an isosceles right triangle, are joined edge
                         to edge without gaps or overlaps. What figure     6.  In triangle ABC, if AB = BC = 11 cm and ∠B is
                         is formed by arranging these pieces?                30° more than ∠A, then the measure of ∠C is
                                                                                        .               (Logical Thinking)
                                                     (Decomposition)
                               (a)  Square                                          (a)  50°

                               (b)  Rectangle                                       (b)  70°

                                                                                    (c)  30°
                               (c)  Both (a) and (b)

                                                                                    (d)  80°
                               (d)  Neither (a) nor (b)

                                                                                    A Tale of Three Intersecting Lines  33

| 30 31 32 33 34 35 36 37 38 39 40 |