the vertical Angle of an isoceles triangle is 100° find its base angles
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3
the base angles would be 40 degrees each
kakkar6644:
How can you say them 40?? It can be 30 and 50 or 20 and 60 also!!
It is an isocelles triangle so the base angles are equal
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8
let the base angles ( equal angles) be x and x
vertical angle = 100°
so, x+x+100= 180° [sum of angles of a triangle is 180°]
or 2x + 100= 180
or 2x= 180-100
or 2x= 80
or x = 80/2= 40°
so the base angles are 40°
vertical angle = 100°
so, x+x+100= 180° [sum of angles of a triangle is 180°]
or 2x + 100= 180
or 2x= 180-100
or 2x= 80
or x = 80/2= 40°
so the base angles are 40°
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