Mathematics, 20.01.2021 23:20 JadaaJayy

HELP ME FAST What is the sum of the interior angles of the polygon

900
540
720
108

Write a transformation that Mapes quad ABCD onto quad A"B"C"A

Lesson 10: Geometry Unit Test CE 2015
1205070 M/J Grade 8 Pre-Algebra - T2 Unit 1: Geometry

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Answer from: flore9584

Im sorry but this is all i know on that

Step-by-step explanation:

Sum of Interior Angles of a Polygon

We first start with a triangle (which is a polygon with the fewest number of sides). We know that

The sum of interior angles in a triangle is 180°.

This is also called the Triangle Sum Theorem. Click here if you need a proof of the Triangle Sum Theorem.

Next, we can figure out the sum of interior angles of any polygon by dividing the polygon into triangles. We can separate a polygon into triangles by drawing all the diagonals that can be drawn from one single vertex.

In the quadrilateral shown below, we can draw only one diagonal from vertex A to vertex B. So, a quadrilateral can be separated into two triangles.

quadrilateral divided

The sum of angles in a triangle is 180°. Since a quadrilateral is made up of two triangles the sum of its angles would be 180° × 2 = 360°

The sum of interior angles in a quadrilateral is 360º

angles in pentagon hexagon

A pentagon (five-sided polygon) can be divided into three triangles. The sum of its angles will be 180° × 3 = 540°

The sum of interior angles in a pentagon is 540°.

A hexagon (six-sided polygon) can be divided into four triangles. The sum of its angles will be 180° × 4 = 720°

The sum of interior angles in a hexagon is 720°.

Answer from: brisamauro27

The answer would be C 720 hope that helps ;)

Answer from: Quest

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.

Answer from: Quest

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

$x^2-2x+y^2-6y=26$

we now create space between the x and y terms with parenthesis.

$(x^2-2x)+(y^2-6y)=26$

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

$\frac{-2}{2} =(-1)^{2} =1$

$\frac{-6}{2} =(-3)^{2} =9$

we add the squares to both sides.

$(x^2-2x+1)+(y^2-6y+9)=26+1+9$

simplify.

$(x^2-2x+1)+(y^2-6y+9)=36$

and write the quadratics in factored form.

$(x-1)^{2} +(y-3)^{2} =36$

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.

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HELP ME FAST What is the sum of the interior angles of the polygon

900
540
...

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