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3 years ago

12

PLS HALP on formulas involving polygons

1 answer:

jeyben [28]3 years ago

6 0

The sum of all five angles is 540 degrees.
A) 4*congruent angles + 5th angle = 540
B) (5th angle) -30 = 2*cong angle

A) 5th angle = 540 -4*cong angle
B) 5th angle = 2*(cong angle) -30
Multiplying B) by -1
B) -5th angle = -2*(cong angle) +30 then adding to A)
A) 5th angle = 540 -4*cong angle

-2*(cong angle) +30 = 540 -4*cong angle
2*(cong angle) = 510
*****************************************
By trial and error I determined
each congruent angle = 95
5th angle = 160

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$(a)\dfrac{92}{117}$

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Number of Men, n(M)=24

Number of Women, n(W)=3

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(b)Probability that one man and one woman are appointed.

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