Related Questions

The height of a cone is 24 cm and the area of the base is 154 cm2. What is the curved surface area (in cm2) of the cone?
A 484
B 550
C 525
D 515
The[ triangular base of a prism is a right triangle of sides a and b = 2a . The height h of the prism is equal to 10 mm and its volume is equal to 40 mm3 , what will be the lengths of the sides a and b of the triangle ?
A 2 mm and 3 mm
B 1 mm and 4 mm
C 2 mm and 2 mm
D 2 mm and 4 mm
A hexagonal prism has 18 edges. How many vertices does it have?
A 8
B 12
C 20
D 22
When white light passes through a glass prism we get a spectrum on the other side of the prism. In the emergent beam the ray which is deviated least is
A the violet ray
B the red ray
C the green ray
D the blue ray
The length of a rectangle is 6 cm more than the side of a square, and the width of the rectangle is 6 cm less than the side of the square. If the area of the square is 86 cm2. what is the area of the rectangle?
A 36 cm2
B 40 cm2
C 50 cm2
D 64 cm2
A solid cube has side 8 cm. It is cut along diagonals of top face to get 4 equal parts. What is the total surface area (in cm2) of each part?
A 96 + 64\u221a2
B 80 + 64\u221a2
C 96 + 48\u221a2
D 80 + 48\u221a2
A square carpet with an area of 169 cm2 must have 2 cm cut off one of its edges in order to be a perfect fit for a rectangular room. What is the area (in cm2) of this rectangular room?
A 117
B 143
C 145
D 165
A square carpet with an area of 169 cm2 must have 2 cm cut off one of its edges in order to be a perfect fit for a rectangular room. what is the area (in cm2) of this rectangular room ?
A 117
B 143
C 145
D 165
In triangle PQR length of the side QR is less than twice the length of the side PQ by 2 cm. Length of the side PR exceeds the length of the side PQ by 10 cm. The perimeter is 40 cm. the length of the smallest side of the triangle PQR is:
A 6 cm
B 8 cm
C 9 cm
D 10 cm
A uniform pyramid and a uniform prism of same height lie with their base on the surface. Which is more stable ?
A pyramid
B prism
C both equally stable
D none of the above

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