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2017 10 math sample paper sa1 solved 02 ques

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CBSE Sample Paper -02 SUMMATIVE ASSESSMENT I Class X Mathematics Time allowed: 3 hours Maximum Marks: 90 General Instructions: a) All questions are compulsory. b) The question paper comprises of 31 questions divided into four sections A, B, C and D. You are to attempt all the four sections. c) Questions 1 to 4 in section A are one mark questions. d) Questions 5 to 10 in section B are two marks questions. e) Questions 11 to 20 in section C are three marks questions. f) Questions 21 to 31 in section D are four marks questions. g) There is no overall choice in the question paper. Use of calculators is not permitted. 1. SECTION A Is the triangle with sides 12 cm, 16 cm and 18 cm a right triangle? Give reason. 2. Express 0.6 as rational number in simplest form. 3. If sec 2 (1 + sin ) = k , then find they value of k. 4. Evaluate: tan 26o cot 64o SECTION B 1 , 0o 90o. sec 5. Find maximum value of 6. Find the HCF of 96 and 404 by prime factorisation method. Hence, find their LCM. 7. In a ABC , if C = 90o , prove that sin 2 A + sin 2 B = 1 . 8. Sum of two numbers if 35 and their difference is 13. Find the numbers. 9. The number of students absent in a school was recorded every day for 147 days and the raw data was presented in the form of the following frequency table. No.of students 5 6 7 8 9 10 11 12 13 15 18 20 1 5 11 14 16 13 10 70 4 1 1 1 absent No. of days Obtain the median and describe what information it conveys. 10. In an isosceles ABC , if AC=BC and AB 2 = 2 AC 2 then find C . Material downloaded from http://myCBSEguide.com and http://onlineteachers.co.in Portal for CBSE Notes, Test Papers, Sample Papers, Tips and Tricks

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