Answer:
15 x 1 + 5 x 3 = 30
Step-by-step explanation:
If you turn the x into a one then it multiplies 15 by one and then it remains at 15, then you multiply 5 and 3 so that's 15 and then 15 + 15 is 30.
It’s either vertex or base
Answer:
(the pic)
Step-by-step explanation:
I used a link
Circumference formula tells you

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The formula to find the area of a circle is

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