The angles of a triangle are (y+30) , (2y-20) degree, and (y/2+40 ) degree. What is the measure of the largest angle?
Answers
Answer:
1. In which quadrant the point ( 1, -4 ) lies?
a) II quadrant b) I quadrant c) IV quadrant d) III quadrant
2. The degree of variable in the polynomial p(x) = x3 – x
4 – 3x + 2x2 + 4 is
a) 3 b) 1 c) 2 d) 4
3. Using identity/ies find the value of (998)2
a) 996002 b) 996004 c) 996001 d) 996008
4. When the class teacher calculate the attendance percentage of a student studying in her class for the month
then the data used by her is?
a) Primary data b) Secondary data c) Both a) and b) d) None of these
5. What is ordinate (O) and abscissa (A) in ( -2, -7)
a) O = -7, A = -2 b) O = - 7, A = 2 c) O = 7 , A = 2 d) O = 7, A = -2
6. The probability of getting a head when a coin is tossed is
a) 1 b) 1/2 c) 1/3 d) 1/4
7. If two supplementary angles are in the ratio 2:3 then the angles are
a) 72◦ , 180◦ b) 90◦ , 90◦ c) 72◦ , 108◦ d) 90◦ , 180◦
8. If in a ABC,
B = 105 and
C = 55 then
A is equal to
a) 40◦ b) 20◦ c) 30◦ d) 10◦
9. Find the area of an equilateral triangle whose side is 4 cm
a) 4√ b) 3√ c) 2√ d) 3√
10. Which number is √ ?
a) Rational b) Irrational c) Both a) and b) d) None of these
11. A polynomial of the form ax2 + bx + c + dx3
is called _________________ polynomial.
12. The abscissa of any point on y-axis is ____________________
13. If an angle is 200
less than its complement then its measure is ___________________
14. The class mark of the given interval is 10-30 is ____________________
15. If the angles of a triangle are in the ratio 2:3:4 then the value of largest angle is __________________
16. Is every integer is a natural number Yes/No. Explain giving reason.
17. Write the Heron’s formula to find area of a triangle.
18. Find the value of (x – 2y)3
.
19. Find the mode of the data:- 40, 5, 5, 10, 30, 30, 20, 20, 30, 10
20. Give an example of secondary data in statistics.