PART A: Rosie writes the equation 24(mx+n)=3x+17, where m and n are real numbers.
2 answers:
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Draw some lines and we get some special 30-60-90 triangless
se diagram
so using my math
remember that if the hyptonuse is 2x then angle oposite the 30 degree is x and angle oposit the 60 degree is x√3
so
we have a kite and know the lengths of he diagonals
we do
(9+3) times (3√3) to find the area total which is 36√3
then, we find teh area of the sector not shaded
the area of the sector is (120/360) times the area which is pi6^2
so
1/3 times 36pi or 12pi
so
36√3-12pi≈24.6547 square units
se diagram
so using my math
remember that if the hyptonuse is 2x then angle oposite the 30 degree is x and angle oposit the 60 degree is x√3
so
we have a kite and know the lengths of he diagonals
we do
(9+3) times (3√3) to find the area total which is 36√3
then, we find teh area of the sector not shaded
the area of the sector is (120/360) times the area which is pi6^2
so
1/3 times 36pi or 12pi
so
36√3-12pi≈24.6547 square units