Question

B
(x-4)
(x-2)
i) In the given figure, O ABCD is a trapezium,
AB | CD and its area is 33 cm2. From the information
given in the figure, find the length of side AB.
Fill in the empty boxes to get the solution.
ABCD is a trapezium. AB || CD
Area of trapezium = x (Sum of parallel sides) x Height
:: A(OABCD=(AB + CD) *
:: 33 = {(x + 2x + 1) xD
:: 3x2 - 11x – 70 = 0
:: (3x + 10) = 0 or = 0
Qorx=0
But, length is never negative.
D
M
(2x + 1)
-10
.. X 7
3
:*
.. X =
AB=
ACADE​

Answer 1

Answer:

It is given that two circle having radii 5.5 cm and 4.2 cm touch each other externally. We know, the distance between the centres of the circles touching externally is equal to the sum of their radii. Thus, the distance between their centres is 9.7 cm.