a. 9 cm 2 because each side would be 3 and length x width would be 3 x 3 = 9
Answer:
x=5
Step-by-step explanation:
∠D=∠E (angles opposite to equal sides are equal)
So,
=3x+10
10=
-3x
10=x(x-3)
we know 5×2= 10 & 5-3=2,
So, 10=5×(5-3)
10=5×2
∴x=5
No.3
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