3 years ago

Explain why all linear angle pairs must be supplementary, but all supplementary angles do not have to be linear pairs?

1 answer:

4 0

Two angles are supplementary if their measures sum 180°.

Linear angle pairs are adjacent angles (they are together) and they form a straight angle, which is 180°. Therefore, they are supplementary.

But two angles may be separated and yet add 180°, then they are supplementary but are not linear angle pairs.

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If 30% of John's photographs were perfect, but 210 photographs were not perfect, then how many photographs were there in all?

anyanavicka [17]

If 30% were perfect, 70% were not perfect. So we know that 70% of the total number of photographs is 210.

p(70/100)=210 multiply both sides by 100

70p=21000 divide both sides by 70

p=300

So there are 300 photographs in all.

3 0

3 years ago

A circle has a diameter of 5 ft. What is the circumference of the circle? Round to nearest hundreth

yawa3891 [41]

Answer:

15.70

Step-by-step explanation:

$5 \times 3.14 = 15.70$