Question

(d) None
2) The base angle of an isosceles triangle is 55° The size of the vertical
angle is
(a) 55°
(b) 35°
(c) 70°
(d) 125​

Answer 1

Answer:

(a) 70

Step-by-step explanation:

angle sum property = s + s + s = 180

= 55 + 55 + s = 180

= 110 + s = 180

s = 180 - 110

s = 70

Answer 2

Answer:

Hey mate i think the correct answer will be (c) option 70° as if we apply angle sum property

{We know that sum of all angles of ∆ should be 180°. }

As base angles are 55 °

Let x be tha missing angle

We have,

55°+55°+x=180°

110°+x=180°

x=180°-110°

x=70°Answer

Hence,the missing angle is 70°.

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