Question

please answer both...... it's urgent please answer all please​

Answer 1

Step-by-step explanation:

1)let the number=x

the certain number is 5 more than -5

=>x=-5+5

=>x=0

The number=0

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2)Radius is 1/2 of its diameter

=>Radius=Diameter/2

=>Radius=(1/2)diameter

=>Radius=50%diameter

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3)ABCD is a Parallelogram

angle A=70°

since opposite angles are equal

=>angle C=70°

angle B=80°

since opposite angles are equal

=>angle D=80°

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