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Mathematics 7 Online
xXQuintonXx:

help please(ss below)

xXQuintonXx:

xXQuintonXx:

dont i add all of the angles together?

Meticulous:

Ok so angle 4 is an exterior angle of a triangle right?

xXQuintonXx:

yesss?????

xXQuintonXx:

which means its the total right?

Meticulous:

Not exactly

xXQuintonXx:

so i would add all of the angles together to make it

Meticulous:

The relationship between an exterior angle of a triangle and the interior angles is that the exterior angles is equal to the sum of the opposite interior angles.

Meticulous:

The key word is OPPOSITE interior angles. Meaning that the adjacent angle ( angle next to it " angle 2") is not included when adding the angles

Meticulous:

Does that make sense?

xXQuintonXx:

ehhhhh

Meticulous:

Its okay lol. I'm going to add a visual to make it easier to understand. Please give me a seco

xXQuintonXx:

ight lol

Meticulous:

karissafrazier:

sorry quint- i haven't gotten to this yet- sorry bro- wish i could help u

xXQuintonXx:

@meticulous wrote:
still confused

Meticulous:

OK so the exterior angle = angle 4 the two opposite interior angles = 51 and 57

xXQuintonXx:

OHHHH nvm i understand now

xXQuintonXx:

i add angle 1 and 2 together to get angle 4 right?

Meticulous:

possibly, what would the answer be?

xXQuintonXx:

123

Meticulous:

Not exactly , angle 2 is the adjacent angle of angle 4. You would add the opposite interior angle ( which have measures of 51 and 57)

xXQuintonXx:

so its 108?

Meticulous:

correct

xXQuintonXx:

thanks

karissafrazier:

i had these kinds of questions on my recent end of the year test- i just guessed

Meticulous:

np!

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