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Mensuration Practice Test 7
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© examsnet.com
Question : 1
Total: 40
If the height of a trapezium and its parallel sides are increased two times, how many times the area of the trapezium would increase?
2 times
3 times
4 times
8 times
Validate
Solution:
Area of trapezium =
1
2
(
a
+
b
)
×
h
... (i)
Two times of trapezium’s heights and parallel sides:
=
1
2
(2a + 2b) × 2h
= 2(a + b) × h ......(ii)
Compare (i) and (ii),
We get (ii) equation which is four times of equation (ii)
Area would be increased 4 times.
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