<span>Since it is isosceles, we know that the other base angle is also 40°
</span><span>Three interior angles of every triangle totals 180°
</span><span>x° + 80° = 180°
</span><span>x° = 100°</span>
Answer:
x=40
Step-by-step explanation:
4/25 = X/250
x=(4 . 250) /25
x=40
Answer:
Angle 1:Angle2: angle3: total
40 40 100 180
Step-by-step explanation:
The sum of the angles of a triangle is 180
Angle 1:Angle2: angle3: total
2 :2 :5 : 2+2+5 = 9
Divide 180 by 9
180/9 = 20
Multiply each by 20
Angle 1:Angle2: angle3: total
2*20 :2*20 :5*20 : 9*20
40 40 100 180
