Help i don't know what i'm doing
2 answers:
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Answer:
C. 50
Step-by-step explanation:
We are given ΔABC with an altitude BD as shown in the figure.
As it is known that,
<em>'When an altitude is drawn from a right angle of a triangle, then all the three triangles are congruent.'</em>
So, we get that ΔABC ≅ ΔABD ≅ CBD.
Since, the triangles are congruent, their corresponding sides and angles will be congruent.
Moreover, the ratio of the sides will be equal.
So, we get from ΔABC ≅ ΔABD,
i.e.
i.e.
i.e.
i.e.
i.e. z = 50.
Hence, the value of z is 50.