MCQ - TNPSC JTO

JTO - 540 - Trade - Workshop Calculation Science

UNIT - 6 - Mensuration - Area of Cut-Out Regular

161)   

 If the area of a triangle is 60 cm² and one side is 10 cm with corresponding height unknown, find the height.

A.
B.
C.
D.
162)   

A regular hexagon has a perimeter of 72 cm. What is its area?

A.
B.
C.
D.
163)   

 Two circles have radii 6 cm and 3 cm. What is the ratio of their areas? 

A.
B.
C.
D.
164)   

 A square has an area of 400 cm². If its side is increased by 20%, what is the new area? 

A.
B.
C.
D.
165)   

 What is the maximum number of complete circular holes (radius 2 cm) that can be punched from a square plate of side 20 cm?

A.
B.
C.
D.
166)   

The length and breadth of a rectangle are in the ratio 5:3. If its diagonal is 26 cm, find its area. 

A.
B.
C.
D.
167)   

Find the area of the shaded region in a square of side 10 cm with a quarter circle of radius 5 cm at one corner. 

A.
B.
C.
D.
168)   

The difference between the circumferences of two concentric circles is 44 cm. If the radius of the smaller circle is 7 cm, find the radius of the larger circle. 

A.
B.
C.
D.
169)   

 A triangle has angles in the ratio 1:2:3. If the longest side is 10 cm, what is its area?

A.
B.
C.
D.
170)   

The perimeter of a regular hexagon is equal to the circumference of a circle. What is the ratio of their areas?

A.
B.
C.
D.
171)   

A cone and a hemisphere have equal base and equal height. What is the ratio of their volumes? 

A.
B.
C.
D.
172)   

A hemisphere is melted and cast into 3 equal cones. If radius remains same, what is the ratio of the height of the cone to radius of hemisphere? 

A.
B.
C.
D.
173)   

 A tank in the shape of a cuboid is 5 m × 4 m × 3 m. How many litres of water can it hold?

A.
B.
C.
D.
174)   

 The lateral surface area of a cone is equal to its base area. What is the ratio of slant height to radius?

A.
B.
C.
D.
175)   

A cylindrical pipe has an internal radius of 7 cm and length 1.5 m. Find the internal surface area. 

A.
B.
C.
D.
176)   

The TSA of a cube is equal to that of a sphere. What is the ratio of volume of the cube to volume of the sphere? 

A.
B.
C.
D.