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2 years ago

What is DC to the nearest tenth

Mathematics

1 answer:

Goryan [66]2 years ago

3 0

Answer:

DC= 32.3 units

Step-by-step explanation:

Use Pythag theorem to find BC first

15 ^2 + BC ^2 = 22^2 then BC = sqrt 259

Then use the Pythagorean Theorem again to find DC

DC^2 = 28^2 + sqrt(259)^2

DC=32.3

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4 years ago

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Answer:

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Step-by-step explanation:

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2. Let's use Pythagorean Theorem to find the height of each right triangle, which will also give us the height of the isosceles triangle: $a^2 + b^2 = c^2$ , where a = height, b = base, and c= hypotenuse.

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3. The√(60) is the height of each right triangle, and it's also the height of the isosceles triangle. Therefore, the answer is B) x = √60.

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