Question

A triangle with one obtuse angle must also have two acute angles.
A. True
B. False

Answer 1

How do you know

Answer 2

Whoa now...
Remember that the sum of all the angles inside a triangle is ALWAYS 180 degrees.

Answer 3

its true.

Answer 4

OMG thnk you terence

Answer 5

if there was a right angle in it, which would not happen, it would be a right triangle

Answer 6

More than that, Nicole... a triangle can't have an obtuse angle AND a right angle.

Answer 7

exactly...thats what i just said in not those words.

Answer 8

Say, the angles measure a,b, and c.
Suppose a is obtuse
Then
a > 90
Suppose b is right
b = 90
Then a+b > 180
And that's not even counting c yet.

Answer 9

thats why i put ," which can not happen,"

Answer 10

So the anser is true

Answer 11

It's true :)

Answer 12

true

Answer 13

mhmm!

Answer 14

What do you know to be true about the values of p and q?
A. p < q
B. p = q
C. p > q
D. can't be determined

Answer 15

as someone said earlier, a triangle equals 180 degrees. so you would subtract the angles you know to find whats left.

Answer 16

:P
I said Nicole, at least say Terence :D
Just kidding.
But yeah, what's left should be what remains if the sum of the two given angles were taken away from 180

Answer 17

So how do i find out the anser

Answer 18

for the first triangle for instance...
what do we know about
80 + 20 + p
?

Answer 19

you subtract the angles in the triangle from 180

Answer 20

and @terenzreignz , my name is actually hope :) lol

Answer 21

100+p

Answer 22

Well... my bad, Hope :)
I'm Terence :D

Answer 23

Im josh

Answer 24

hi josh :)

Answer 25

Yeah... so about that question Josh?
80 + 20 + p
What should these add up to?

Answer 26

Hi Hope you are beautiful... 100+p

Answer 27

80 + 20 + p = 100 + p
granted...
but these are the three angles in the first triangle, and what do we know about the angle sum of a triangle?

Answer 28

IDK

Answer 29

thanks @Fradycat

Answer 30

They always add up to 180 (degrees)

Answer 31

Right so would it be 80

Answer 32

OKAY so you know that a triangles angles HAVE TO add up to e 180 right?
YOU already have TWO angles in the triangle on the left...

Answer 33

There you go :)
Now do the other triangle.

Answer 34

correct :D

Answer 35

The anser is 80 so... B.) is my anser

Answer 36

Okay... nicely done :)

Answer 37

What is the value of y?

Answer 38

put it in an equation like so
y+(y-12)+56=180, then solve for y

Answer 39

How do i solve it

Answer 40

true