For each pair of similar figures, find the unknown area.
Problem 1 :
Problem 2 :
Problem 3 :
Problem 4 :
In the given figure, the area of triangle BCD is 6.4 cm2. Find the area of
(a) Triangle ACE
(b) Quadrilateral ABDE
Problem 5 :
Find
(a) The value of x
(b) The area of triangle PQT is given quadrilateral QRST has the area 22 m2
Problem 6 :
What will happen to the volume of
(a) a sphere if the radius is doubled
(b) A cylinder if the radius and the height are increased by 50% ? Solution
Answers :
(1) 14.16 m2
(2) 41.6 m2
(3) 8.47 m2
(4) (a) 12.54 cm2 (b) 6.14 cm2
(5) (a) x = 1.5 cm (b) 17.6 m2
(6) (a) It is multiplied by 8
(b) It is multiplied by 3.375
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