Q1. In a polyhedron, if the number of faces, edges and vertices are denoted by F, E and V respectively, then according to Euler’s formula
In, Polygon the number of faces, edges and vertices are denoted by F,E and V respectively. According to Euler’s formula.
Q2. Which type of triangle will obtain from sides 2 cm, 3 cm and 6 cm?
(a) Acute angled triangle
(b) Scalene triangle
(c) Both ‘a’ and ‘b’
(d) None of the above
Sides given 2 cm, 3 cm, 6 cm.
We can obtain acute angle triangle and scalene triangle.
Q3. A shopkeeper uses a weight of 800 gm for 1 kg and professes to sell his goods at cost price. His profit is
Shopkeeper uses a weight of 800 gm instead
1 kg, so that = (1000 – 800)/1000×100
= 200 / 1000 × 100 = 20%
Q4. Throwing two dice at the same time, the probability of getting larger number at one dice than order another will be
Total number of dice = 2
Total number of activity = 12
Because one dice has 6 numbers
So, getting a larger number at one
Q5. The number of diagonals in a regular hexagon will be
The total number of diagonal will be 9.
Q6. The height of a room is x and the area of two adjacent walls of room are y and z respectively. The area of the roof of room will be
Q7. In a farm, there are some hens and goats. The sum of their heads are 77 and sum of their legs are 248. The number of hens in the farm is
Q8. A semi-circular shaped window has diameter 49 cm. Its perimeter will be (use π=22/7)
(a) 77 cm
(b) 126 cm
(c) 154 cm
(d) 203 cm
Diameter of semi circle = 49 cm
Perimeter = 2πr=49×22/7
= 154 cm
Q9. In given figure, the value of x°+y° will be
Q10. The value of 1.3 is equal to
The value of 1.3 is =13/10