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3 years ago

11

The incenter of a triangle is formed by the intersection of the of a triangle

1 answer:

andre [41]3 years ago

6 0

Answer:

angle bisectors

Step-by-step explanation:

The incentre is where a triangle's three angle bisectors intersect ( an angle bisector is a ray that cuts an angle in half ). The incentre is the centre of a triangle drawn inside the triangle.

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4 years ago

Liliana is making a vase with a circular base. She wants the area of the base to be between 135 cm2 and 155 cm2. Which circle co

Umnica [9.8K]

Answer:

(b) Circle C is shown. Line segment A C is a radius with length 7 centimeters.

Step-by-step explanation:

Given

$Minimum\ Area = 135cm^2$

$Maximum\ Area = 155cm^2$

$\pi = 3.14$

Required

Which circle could she use

To do this, we simply calculate the areas of all the given circles

The area of a circle is:

$Area = \pi r^2$

Where

$r = radius$

$a.\ r = 6cm$

The area is calculated as thus:

$Area = \pi r^2$

$Area = 3.14 * (6cm)^2$

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$Area = 114.04cm^2$

$b.\ r = 7cm$

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$Area = \pi r^2$

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<em></em>

$c.\ r = 8cm$

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$Area = \pi r^2$

$Area = 3.14 * (8cm)^2$

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$Area = \pi r^2$

$Area = 3.14 * (9cm)^2$

$Area = 3.14 * 81cm^2$

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<em>From the calculations above; only the circle in option (b) has an area within the required range of 135 to 155cm^2</em>

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