## Workshop Calculation and Science

#### Year 1 Module 8 1: What is the area of a square whose side is 18 cm
A : 26 cm2
B : 36 cm2
C : 72 cm2

D : 324 cm2

2: What is the diagonal of a square plate whose side is 28 cm
A : 39.29 cm
B : 39.39 cm
C : 39.49 cm

D : 39.59 cm

3: What is the side of a square whose area is 625 mm2
A : 15 mm
B : 20 mm

C : 25 mm
D : 30 mm

4: What is the perimeter of a rectangle whose length and breadth are 20 cm and 18 cm
A : 56 cm
B : 66 cm

C : 76 mm
D : 86 mm

5: What is the area of a rectangle whose length and breadth are 10cm and 8cm respectively
A : 75 cm2

B : 80 cm2
C : 85 cm2
D : 90 cm2

6: What is the area of a right angled triangle having a base 10 cm and height 5 cm
A : 20 sq.cm

B : 25 sq.cm
C : 30 sq.cm
D : 35 sq.cm

7: What is the perimeter of scalene.Triangle having sides of 40mm 20mm and 28mm
A : 68 mm
B : 78 mm

C : 88 mm
D : 98 mm

8: What is the area of an equilateral triangle of side 450 mm
A : 856.82 cm2
B : 866.82 cm2

C : 876.82 cm2
D : 886.82 cm2

9: What is the area of a circle of diameter 50 cm
A : 1932.5 cm2
B : 1942.5 cm2
C : 1952.5 cm2

D : 1962.5 cm2

10: What is the area of a (A) semicircle whose dia is 20 cm (d)
A : 147.1 cm2

B : 157.1 cm2
C : 167.1 cm2
D : 177.1 cm2

11: What is the cross sectional area of a circular ring of D = 38 mm d = 32mm

A : 320 mm2
B : 330 mm2
C : 340 mm2
D : 350 mm2

12: What is the area of a sector of a circle of radius 5 cm and its angle is 96°
A : 20.39 cm2

B : 20.93 cm2
C : 20.89 cm2
D : 20.98 cm2

13: What is the formula for area and perimeter of a hexagon
A : 3 x Ö3/4 a2 unit2 3a unit
B : 4 x Ö3/4 a2 unit2 4a unit
C : 5 x Ö3/4 a2 unit2 5a unit

D : 6 x Ö3/4 a2 unit2 6a unit

14: What is the area of an ellipse if the major and minor axes are 5 cm and 3 cm respectively
A : 27 cm2
B : 37 cm2

C : 47 cm2
D : 57 cm2

15: Find the total surface area of cube whose side is 25 cm.
A : 3740 cm2
B : 3745 cm2

C : 3750 cm2
D : 3755 cm2

16: Find the total surface area of a cast iron bar whose length width and height are 20m 15m and 12m.
A : 1340 m2

B : 1440 m2
C : 1540 m2
D : 1640 m2

17: What is the formula for total surface area of a cylinder

A : 2p r (h + r) unit2
B : p r (h + r) unit2
C : p rh unit2
D : 2p rh unit2

18: What is the volume of a rectangular tank of 30 m length 20m width and 10m height
A : 5900 m3

B : 6000 m3
C : 6100 m3
D : 6200 m3

19: What is volume of the cylinder whose radius is 7 cm and height 12 cm
A : 1842 c.c
B : 1844 c.c

C : 1846 c.c
D : 1848 c.c

20: What is the volume of sphere of radius 7 cm

A : 1436 cm3
B : 1463 cm3
C : 1346 cm3
D : 1636 cm3

21: What is the formula for finding volume of a hollow cylinder having outer radius ´R´ inner radius ´r´ and height ´h´

A : p (R2  r2) h unit3
B : p/3 (R2  r2) h unit3
C : 2/3 p(R2  r2) h unit3
D : 4/3 p (R2  r2)h unit3

22: What is the capacity of a conical tank of radius 2 m and height 5m
A : 11 m3

B : 21 m3
C : 31 m3
D : 41 m3

23: How many liters of water a cylindrical tank of radius 75 cm and height 100 cm can hold  75

A : 1766.25 liters
B : 1767.25 liters
C : 1768.25 liters
D : 1769.25 liters

24: What is the total surface area of a cylinder having radius 2 meters and height 5 metres
A : 86 sq.meter

B : 88 sq.meter
C : 90 sq.meter
D : 92 sq.meter

25: Find the curved surface area of a cylinder 10 cm dia and 20 cm height
A : 620 cm2

B : 628 cm2
C : 630 cm2
D : 638 cm2

26: What is the name of the object

A : Triangular prism
B : Frustum of a pyramid

C : Frustum of a cone
D : Hexagonal prism