SPEAKING I Asking for and giving opinions 6. Complete the dialogues.
1 Anna Don't you these trousers?
Asel Not much.
2 Tom Do you like swimming?
Amy It's I suppose.
3 Emily I love reading.
Josh I can'tit.
4 Adam I love this shop. do you reckon?
Sam It's not bad.
5 Jusup Do you like this song?
Peter No, I'm not very
on it.

пусть внутренние углы треугольника равны a, b,c,

тогда

a+b+c=180 градусов

внешний угол b1=360-b

внешний угол   c1=360-c

b1+c1=250

или

b1+c1=720-(b+c)

b+c=720-250= 470

c=180-(c+b)= 180-470< 0

не правильное условие !

2r=ас/sin60=9/(√3/2)=6√3

r=3√3

y=-x

(-х)=x^2+3x-5

x^2+4x-5=0

(x+5)(x-1)=0

x=-5 или x=1

(-5, 5) (1,-1)

ответ: (-5, 5) (1,-1)

sabc=3см*4см*6см=72см