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# Mensuration 2D || 12.02.2021

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Question 1

A triangle having perimeter 40 cm, one side 11 cm and difference of other two sides is 3 cm. What is the area (in cm2) of triangle?

Question 2

If diagonals of a rhombus are 36 cm and 48 cm, then what is the perimeter (in cm) of the rhombus?

Question 3

ABCD is a rectangle. H and G are midpoints of AD and DC respectively, If AE:EB = 2:1 and BF:FC = 1:3 and BF = BE. Find the ratio of areas of shaded and unshaded regions. Question 4

The areas of a square and a rectangle are equal. The length of the rectangle is 10 cm more than the side of the square and breadth is 6 cm less than the side of the square. What is the perimeter (in cm) of the rectangle?

Question 5

Two parallelograms ABCD and ABEF are on same base AB. Area of parallelogram ABEF = 160m2. Find area of Δ ADP Question 6

A wire encloses an area of 616 cm2, when it is bent in the form of a circle. If the wire is bent in the form of a square, then its area (in cm2) is very nearly equal to:

Question 7

The figure below shows two concentric circular fields with centre O. PQRS a square garden, inscribed in the outer circular field. It also circumscribes the inner circular fields, touching it at points B, C, D and A. What is the ratio of the perimeter of the outer circular filed to that of polygon ABCD? Question 8

A rectangular park was redesigned and as a result of which its length increased by 50%. If the areas of the park, remained unchanged, then by how much percentage had the breadth been reduced?

Question 9

If the side of a square is units and its diagonal is units, then the length of the side of the square would be

Question 10

PQRS is a parallelogram. A and B are midpoints of side QR and RS. If the area of triangle PQR is 16 cm2, then the area of triangle PAB is,
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