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3 years ago

ZABD and ZDBC are supplementary angles.

Mathematics

2 answers:

Dominik [7]3 years ago

7 0

Answer:

Solution given:

x+120°=180°[linear pair][supplementary]

x=180°-120=60°

x=60° is your answer

Mila [183]3 years ago

4 0

<h3>Answer:</h3>

As above angles are supplementary,

x + 120° = 180°
x = 180° - 120°
x = 60°

Hence, value of x is 60°.

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2 years ago

{-210, -156, -366,-471, -108,-627, -579}

Andru [333]

Option D I and IV only is correct option

Step-by-step explanation:

We need to identify that the numbers {-210, -156, -366,-471, -108,-627, -579} belong to which of the following set of numbers.

I. Rational Numbers

II. Natural Numbers

III. Whole Numbers

IV. Integers

We will consider each option

Rational numbers: numbers that can be written by dividing two integers. They can be positive or negative.

all the numbers given can be divided by 1 to make them fractions. So all numbers are rational numbers.

Natural numbers: numbers that are positive integers excluding 0 i.e 1,2,3...

So, the given numbers are not natural numbers

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Integers: it is a whole number (not fraction) that can be positive,negative or zero. So, the numbers given are integers.

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Keywords: Set of numbers

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6 0

3 years ago

Please help:)

Finger [1]

The sum of all angles in an octagon is given by

180*(n-2) >>>>>>>>>with n = 8

180*(8-2) = 1080 degrees

A + B = 1080 .......where

A is the angle of an octagon which is twice that of the other seven angles

B equals the sum of the other seven angles

If we assume each angle of B is equal to each other, then

B = x+x+x+x+x+x+x = 7x

And A = 2x

The equation that results is

A + B = 2x +7x = 9x =1080

x = 120 degrees
2x = A = 240 degrees

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3 years ago