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kykrilka [37]
3 years ago
7

Find mc when quadrilateral ABCD is a parallelogram.

Mathematics
1 answer:
wariber [46]3 years ago
5 0

Answer:

A

Step-by-step explanation:

The opposite angles in a parallelogram are congruent, thus

∠ C = ∠ A = 57°

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Circle A has a diameter of 9 inches, a circumference of 28.26 inches, and an area of 63.585 square inches. The diameter of circl
sergiy2304 [10]
A) The equation for circumference is C=2piR. So Filling in for circle A we have 28.26=2*pi*4.5 so we want to isolate pi which I'm gonna call x for it's easier for me xD. So we're gonna start by dividing 4.5 from each side which is gonna leave us with 6.28=2*x which gives you x(pi)= 3.14. For circle B we have 15.70=2*x*2.5 isolate x by first dividing 2.5 which leaves us again with 6.28=2x and x= 3.14. 
B) The equation for area is A=piR^2. So again for circle A we have 63.585=x9^2. This one is harder but also are you sure that the area is 63.585 it's supposed to be 254.469 (We'll come back to this)
C) The observation you can make about the value of pi for circles A and B is that it stays consistent at 3.14
8 0
3 years ago
Helpppppppppppppppppppppp!?!??!?!??!?!?!? Meh i need help bad it all below and i wasn't stu.pid this time a put it below like i
Lerok [7]

Answer:

A= 254.34 m²

Step-by-step explanation:

to find area of a circle use this formula, A=\pir²

now just plug it in

A= \pi9²

A=\pi81

A= 254.34 m²

6 0
3 years ago
have you baseball card collection got what animals ruined you bought 11 cards to replace some that were lost how many did you be
UkoKoshka [18]
24 (you new amount) - 11 (new cards) = 13 cards to begin with
6 0
3 years ago
It would take 5 taps 150 mins to fill a pool.
Maksim231197 [3]

Answer:

250 mins

Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
Which expression represents a factorization of 63 − 18?\
Evgesh-ka [11]

Answer:

8

Step-by-step explanation:

5+5=20

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78=9090

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