Question

In the figure above, what is the length of BD?
(Need solution step by step) ​

Answer 1

Answer:

4

Step-by-step explanation:

Since angle DBA = 60,

Angle DBC = 120 (Linear pair)

In triangle DBC,

Sum of all angles should be 180

AngleS D + B + C = 180

D + 120 + 30 = 180

D = 180 - 150 = 30

Since angles C and D are 30, they are equal, hence the triangle is an isosceles triangle.

Since bc = 4,bd = 4 (sides of a triangle corresponding to base angles are equal in an isosceles triangle)

Answer 2

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