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16 Maths Exercise Solutions

What is the area of the triangle in the following figure ?

（ ）

（ ）

A.

B.

C.

D.

What will be the change in the volume of a cube when its side becomes. times the original side?（ ）

A. Volume becomes times.

B. Volume becomes times.

C. Volume becomes times.

D. Volume becomes times.

Fill in the blank.

Area of a rhombus is equal to ___ of its diagonals.

Area of a rhombus is equal to ___ of its diagonals.

Fill in the blank.

If the area of a face of a cube is , then the total surface area of the cube is___.

If the area of a face of a cube is , then the total surface area of the cube is___.

State whether the statement are true (T) or false (F).

Amount of region occupied by a solid is called its surface area.___

Amount of region occupied by a solid is called its surface area.___

State whether the statement is true or false.

.___

.___

of water is to be used to irrigate a rectangular field whose area is . What will be the height of the water level in the field?

Find the area of a rhombus whose one side measures and one diagonal as .

The parallel sides of a trapezium are and its non-parallel sides are both equal, each being , find the area of the trapezium.

Find the area of polygon , if , and and are perpendiculars to diagonal .

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