Question

JAI GURU DEV MAHARISHI VIDYA MANDIR SENIOR SECONDARY SCHOOL JANUARY MONTHLY TEST – 2021-2022 CLASS: VIII MARKS: 25 SUBJECT: MATHEMATICS I) CHOOSE THE CORRECT ANSWER 5 X 1 = 5 1) If the three angles of a quadrilateral are 80, 100, 140. Then the fourth angle is _______. a) 40 b) 70 c) 50 2) The probability of getting 8 when a dice is thrown is __________ . a) 1 6 b) 1 c) 0 3) The area of the trapezium whose sum of parallel sides is 33cm and altitude 10cm is _________ sq.cm. a) 165 b) 155 c) 145 4) A parallelogram with all four sides equal is called _________ . a) Rectangle b) Kite c) Rhombus 5) The area of a triangular garden with base 10m and height 19m is ____________ sq.m. a) 105 b) 95 c) 115 II) FILL IN THE BLANKS 5 X 1 = 5 6) Diagonals of a rectangle are _____________ . 7) The opposite angles of a parallelogram are (2y+5) ˚ and (y+10) ˚. The value of ‘y’ is _______ . 8) If the area of a rhombus is 84 sq.cm. and one of its diagonals is 14cm, then the measure of the other diagonal is ________ . 9) The area of a parallelogram with base 15cm and height 20cm is ________ sq.cm. 10) The probability that a letter selected at random from the letters of the English alphabet is a consonant is ________ . III) WRITE TRUE OR FALSE 5 x 1 = 5 11) Probability cannot be negative. 12) Diagonals of a parallelogram bisect each other. 13) A quadrilateral is a 10-sided polygon. 14) Probability of an event is always greater than 1. 15) The length of the diagonal of the rectangle is √ 2 + 2. IV) MATCH THE FOLLOWING 5 X 1 = 5 V) ANSWER IN ONE WORD 5 X 1 = 5 21) What is the probability of a sure event? 22) Name the quadrilateral in which one pair of opposite sides is parallel. 23) What is the area of a square with a perimeter of 24m? 24) What is the probability of getting a composite number if a dice is thrown? 25) Find the probability of taking out a queen from a well shuffled pack of 52 cards. 16) Unequal diagonals - Length x Breadth 17) Area of rectangle - Square 18) All the angles are equal - Rhombus 19) Two pairs of equal adjacent sides - Parallelogram 20) Two pairs of opposite sides are parallel - Kite​

Answer 1

Step-by-step explanation:

1) If the three angles of a quadrilateral are 80, 100, 140. Then the fourth angle is 40.