Pookalam is the flower bed or flower pattern designed during Onam in Kerala. It is similar as Rangoli in North India and Kolam in Tamil Nadu. During the festival of Onam , your school is planning to conduct a Pookalam competition. Your friend who is a partner in competition , suggests two designs given below.
Observe these carefully

Pookalam is the flower bed or flower pattern - Teachoo.jpg

 

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Refer Design I:

Question 1

The side of equilateral triangle is
(a) 12√3 cm
(b) 32√3 cm
(c) 48 cm
(d) 64 cm

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Question 2

The altitude of the equilateral triangle is
(a) 8 cm
(b) 12 cm
(c) 48 cm
(d) 52 cm

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Refer Design II:

Question 3

The area of square is
(a) 1264 cm 2
(b) 1764 cm 2
(c) 1830 cm 2
(d) 1944 cm 2

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Question 4

Area of each circular design is
(a) 124 cm 2
(b) 132 cm 2
(c) 144 cm 2
(d) 154 cm 2

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Question 5

Area of the remaining portion of the square ABCD is
(a) 378 cm 2
(b) 260 cm 2
(c) 340 cm 2
(d) 278 cm 2

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  1. Chapter 12 Class 10 Areas related to Circles (Term 1)
  2. Serial order wise

Transcript

Question Pookalam is the flower bed or flower pattern designed during Onam in Kerala. It is similar as Rangoli in North India and Kolam in Tamil Nadu. During the festival of Onam , your school is planning to conduct a Pookalam competition. Your friend who is a partner in competition , suggests two designs given below. Observe these carefully Design I: This design is made with a circle of radius 32cm leaving equilateral triangle ABC in the middle as shown in the given figure. Design II: This Pookalam is made with 9 circular design each of radius 7cm. Refer Design I: Question 1 The side of equilateral triangle is (a) 12√3 cm (b) 32√3 cm (c) 48 cm (d) 64 cm(b) 32√3 cm Question 2 The altitude of the equilateral triangle is (a) 8 cm (b) 12 cm (c) 48 cm (d) 52 cm(c) 48 cm (b) 1764 cm2 Question 4 Area of each circular design is (a) 124 cm2 (b) 132 cm2 (c) 144 cm2 (d) 154 cm2(d) 154 cm2 Question 5 Area of the remaining portion of the square ABCD is (a) 378 cm2 (b) 260 cm2 (c) 340 cm2 (d) 278 cm2(a) 378 cm2

About the Author

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.