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Marina86 [1]
3 years ago
9

calculate the perimeter of a triangle that has an area of 2340 cm2, and an in-circle with radius of 18cm.

Mathematics
1 answer:
vovangra [49]3 years ago
3 0

Half of the perimeter multiplied by the radius of the inscribed circle is formula to find the area of a triangle, by using this you can see that the perimeter is 260 because 2340 / 9 = 260.

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7 0
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max2010maxim [7]
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Angle 5: 90 degrees - It is a right angle. It is also an opposite angle to angle 2, and is therefore equal to it. 

Since the two diagonal lines are parallel, the angles will relate to each other. 

Angle 7: 126 - It will be 180 - angle 10 (because a straight line = 180)
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I hope this helps!
8 0
4 years ago
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