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AfilCa [17]
3 years ago
9

Round to the place value of the less precise measurement. 2.13 m + 8.6 m

Mathematics
1 answer:
Maru [420]3 years ago
3 0
The answer would be 10.19m. If you want to round it of to a less precise measurement it would be 10 m. That is rounding of the decimal value to the ones place. the rule of rounding of is form 6 t0 9 it would add 1 to the nearest place value next to it and 0 - 5 will not.
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Find the area of a triangle with legs that are 9mm 6mm and 12mm
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Here we are given the three sides of the triangle.

So we have Heron's formula to find its area.

Heron's formula is given by :

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S= \frac{A+B+C}{2}

plugging values of A, B and C to find S

S= \frac{9+6+12}{2}

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Now plugging values of A, B , C and S in Heron's formula

A= \sqrt{13.5(13.5-9)(13.5-6)(13.5-12)}

A=26.14 mm²

Answer: Area of triangle is 26.14 mm².



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Learn more about total distance here:brainly.com/question/4931057

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Please answer the one u can do
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I believe #7 is D) 5.5 x W 
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