Find the length of the side BC of the given
trapezium ABCD
А
10 cm
9 cm
D
3 cm
C.
B В
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Answer:
The length of the side BC is 8cm
Given
ABCD is a trapezium where :
AB = 9cm
AD = 10cm
CD = 3cm
To Find
The side BC
Construction
DE ⏊ AB is drawn so that BCDE become a rectangle.
Solution
We have from construction ,
BCDE is a rectangle ,
∴ BC = DE and CD = BE
Now , from figure
∆AED is right angled triangle since DE ⏊ AB,
From Pythagorean triplet we get ,
Rest answer in attachment 2nd one.
Therefore BC is 8cm.
Hope it helps u...... ☺️☺️✌️✌️
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