The vertex angle of an isosceles triangle is 50^{o} then the base angles are?
50^{o}
65^{o}
55^{o}
70^{o}
In an isosceles triangle if the vertex angle is twice the sum of the base angle, then the angles of the triangle are?
45^{o},45^{o}, 90^{o}
90^{o},45^{o}, 90^{o}
150^{o}, 30^{o} ,45^{o}
30^{o}, 30^{o},120^{o}
If ∠Y = ∠Z, YZ = 12cm and perimeter of ΔXYZ = 38cm. Then length of XZ is
13 cm
12 cm
25 cm
cannot be determined
If ∠P = ∠R and PQ is more than 5 cm but less than 6 cm. Length of QR =
4.8 cm
5.7 cm
6.5 cm
6 cm
In an isosceles triangle if a base angle is twice the vertical, calculate the angles of the triangle
36^{o},72^{o} , 72^{o}
36,36,72^{o}
72^{o}, 72^{o },72^{o}
80^{o}, 100^{o} ,72^{o}
In ΔABC, AB = AC and ∠B is more than 30^{o} but less than 45^{o} .Then m∠C cannot be
33^{o }
37^{o }
41^{o }
30^{o }
In the adjoining figure ΔBAC = 40^{o} then the value of ∠ABC is
140^{o}
80^{o}
100^{o}
In the adjoining figure, ∠ ABC = ∠BDC = 90^{o} & BD = DC then the value of ∠DBC is
45^{o }
30^{o}
60^{o}
90^{o}
In the given figure AB = AC = AD, ∠B = 23^{o} and ∠D = 47^{o}. Then ∠BCD =
24^{o }
110^{o }
20^{o }
70^{o }