Question

Section - A [1x10]
Answer the following questions.
1) The three angles of a quadrilateral are 76°,54° and 108°.Find the measure of the fourth angle .
2) What is the sum of all the interior angles of a hexagon ?
3) What is the upper limit of 40 - 50 ?
4) If a coin is tossed 13 times and tail turns upto 7 times , what is the probability of occurrence of tail ?
5) 1000 is a perfect square. (True/False)
6) Find the square of : 35
7) Is the cube of a negative number always negative ? (Yes / No )
8) Like term as 15ab is 25abc . (True / False)
9) Two monomials are multiplied.Is the product a monomial or binomial ?
10) Are the terms xy and yx same or different ?
Section - B [2x3]
Answer the following questions .
11) What is the probability of a number selected from the numbers 1 , 2 , 3 , . . . 20 such that it is a prime number ?
12) Find the cube root of 216 by prime factorisation method .
13) Add : 5x - 13xy + 4y - 9 and 7y + 5xy - 12x + 13
Section - C [3x4]
Answer the following questions .
14) Construct a rhombus BEST, in which BE = 4.5 cm and ET = 6 cm.
15) Find the least number that must be subtracted from 5607 so as to get a perfect square. Also find the square root of the perfect square . 16) Multiply ( x + 7y ) and ( 7x - y ) .
17) Using suitable Identity, find :
194 X 206
Section - D [4x3]
Answer the following questions .
18) Two adjacent angles of a parallelogram are ( 3x - 4 )° and ( 3x + 16)°. Find the value of x and hence find the measure of each of its angles .
19) Construct a parallelogram PURE, in which PU = 5.5 cm , UR = 7.2 cm and angle U = 60°(< U = 60°) .
20) Prove that: (x + y )( x - y) + ( y + z )(y - z) + ( z +x )( z - x ) = 0 .​

Answer 1

Answer:

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