Question

Page 124 try these solution class 7

Answer 1

Answer:

<1+120°(L.P)

<1=180°-120°=60°

<1=60°

<1=y(Angles opposite to equal sides are equal

y=60°

x+y+<1=180°(Angle sum property of a triangle)

x+60°+60°=180°

x+120°=180°

x=180°-120°=60°

x=60°

Hence,

x=60°

y=60°