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3 years ago

9

Name 8 Polygons And list the number Of sides

2 answers:

nadezda [96]3 years ago

8 0

Rectangle= 4 sides
Trapezoid= 4 sides
Triangle= 3 sides
hexagon= 6 sides
octagon= 8 sides
polyhedron-=10 sides i believe

atroni [7]3 years ago

8 0

A polygon is any shape with at least 3 straight sides and angles.
-triangle, 3 sides
-square, 4 sides
-pentagon, 5 sides
-hexagon, 6 sides
-heptagon, 7 sides
-octagon, 8 sides
-nonagon, 9 sides
-decagon, 10 sides

here are two more:
-parallelogram, 4 sides
-rectangle, 4 sides

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A meteor crater is 3300 feet in diameter. Approximate the distance around the crater. Use 3.14 for pie.

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7 0

3 years ago

Read 2 more answers

The diagram below shows an Isosceles triangle. Label the base angles and the vertex

Dmitry [639]

The base angles of an isosceles triangle are equal

The base angles are 15 degrees, while the vertex angle is 150 degrees

The base angles are given as:

Base = (6a- 3) and (a + 12)

So, we have:

$\mathbf{6a -3 =a + 12}$

Collect like terms

$\mathbf{6a -a =3 + 12}$

$\mathbf{5a = 15}$

Divide both sides by 5

$\mathbf{a = 3}$

Substitute 3 for a in Base = (6a- 3),

$\mathbf{Base = 6 \times 3 - 3}$

$\mathbf{Base = 18 - 3}\\$

$\mathbf{Base = 15}$

So, the base angle is 15 degrees.

The vertex angle is calculated using:

$\mathbf{Vertex=180 -2 \times Base}$

So, we have:

$\mathbf{Vertex=180 -2 \times 15}$

$\mathbf{Vertex=150 }$

Hence, the vertex angle is 150 degrees

Read more about isosceles triangles at:

brainly.com/question/25739654

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2 years ago