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Answered by
1
Answer:
5cm
Step-by-step explanation:
AD =15 and CF = 7
Area = 15*7= 105
Area= 21*x whhere AE is x
105=21*x
x=5cm
Answered by
3
Answer:
AD is 15 cm
CD is 21 cm
area of parallelogram is 15×21 I.e 315 cm^2
so, b×h = 315
h= 315/21= 15 cm
AE will be 15 cm
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