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Mila [183]
3 years ago
7

Can someone help me plesssss

Mathematics
2 answers:
kondor19780726 [428]3 years ago
5 0
For some reason I can’t see your picture, can you try to post it again?
solniwko [45]3 years ago
4 0
I don’t think I can see your picture clearly- can you take it again? ❤️
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who was often called the father of modern mathematics because he created analytic geometry and the cartesian coordinate system?
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René Descartes was the person who created analytic geometry and the Cartesian coordinate system

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The diagram shows a logo​
Charra [1.4K]

Answer/Step-by-step explanation:

✔️Find EC using Cosine Rule:

EC² = DC² + DE² - 2*DC*DE*cos(D)

EC² = 27² + 14² - 2*27*14*cos(32)

EC² = 925 - 756*cos(32)

EC² = 283.875639

EC = √283.875639

EC = 16.85 cm

✔️Find the area of ∆DCE:

Area = ½*14*27*sin(32)

Area of ∆DCE = 100.15 cm²

✔️Since ∆DCE and ∆ABE are congruent, therefore,

Area of ∆ABE = 100.15 cm²

✔️Find the area of the sector:

Area of sector = 105/360*π*16.85²

Area = 260.16 cm² (nearest tenth)

✔️Therefore,

Area of the logo = 100.15 + 100.15 + 260.16 = 460.46 ≈ 460 cm² (to 2 S.F)

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3 years ago
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