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ruslelena [56]
3 years ago
13

The area of a circle is 28.74cm2. Find the length of the radius rounded to 2 DP.

Mathematics
1 answer:
sp2606 [1]3 years ago
3 0

Answer:

3.025 = 3.03

Step-by-step explanation:

A = (3.14)(r)(r)

28.74/3.14 = 9.152866

3.025 = r

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The first side of a triangle measures 4 in. less than the second side, the third side is 3 in. more than the first side, and the
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Answer:

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Step-by-step explanation:

Suppose, the first side is a, the second side is b, and the third side is c. So:

→ a = s - 4

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→ a + b + c = 15

First step, find the value of s

a + b + c = 15

(s - 4) + s + (s - 4) + 3 = 15

3s - 5 = 15

3s = 15 + 5

3s = 20

s = \frac{20}{3}

So, the third side is

c = (s - 3) + 4

c = s + 1

c = \frac{20}{3} + 1

c = \frac{23}{3}

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Happy to help :)

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3 years ago
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Answer:

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ss7ja [257]

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Step-by-step explanation:

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