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2 years ago

SOMEONE PLEASE HELP!

Mathematics

1 answer:

Andrews [41]2 years ago

7 0

Answer:

17.2°

Explanations

To find angle A, use the cosine rule.

a^2 = b^2 + c^2 - 2 × a × c cos A

4^2 = 7^2 + 10^2 - 2 × 7 × 10 cos A

16 = 49+ 100 - 140 × cosA

16 = 149 - 140cosA

16- 149 = - 140cosA

-133 = - 140cosA

cosA = 133/140

cosA = 0.95

A = 17.2°

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A square napkin is folded in half on the diagonal and placed on the diameter of a round plate (see diagram below). If the folded

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Answer:

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Step-by-step explanation:

step 1

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