Cambridge pg 113 4A Q20.B. (1 Viewer)

[Aysce]

I don't really understand what to do and are these types of questions potential hsc questions? In case people don't have the textbook:

An isosceles triangle has base angles of 76 degrees. What is the ratio of base to side length?

 

[Bored_of_HSC]

Bets on how long it'll take SpiralFlex to get this?

Edit: Couldn't you just use the sine rule?

 

[Mature Lamb]

I don't really understand what to do and are these types of questions potential hsc questions? In case people don't have the textbook:

An isosceles triangle has base angles of 76 degrees. What is the ratio of base to side length?

Use the sine rule. Let the base length be A, and one of the side lengths be B.

sin28 / A = sin76 / B

So the ratio of base to side length is A / B = sin28 / sin76

 

[SpiralFlex]

Label your triangles!

Now let's see. Let be base. Let be the side lengths.

So the third angle is 28. (Sum of interior angles of triangle.)





Base is shorter than side length.





Sorry had to get cookies.

 

[Aysce]

Ahh I see now, thanks a lot guys

 

[SpiralFlex]

Ahh I see now, thanks a lot guys

No worries. What is my help count to you now? I want that amount in cookies!

 

[Aysce]

It is equivalent to the amount of times I've helped you

 

[SpiralFlex]

It is equivalent to the amount of times I've helped you

No! No human shall help Spiral. After that day of 700 BC...I have never been the same since. Now pay up in cookies.