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3 years ago

Maths help PLZZ!!!

Mathematics

1 answer:

Rina8888 [55]3 years ago

7 0

Answer:

Since m<BCA=m<CAB=55°, it follows that |AB|=|AC|, this means triangle ABC is isosceles.

Step-by-step explanation:

In the diagram AB is parallel to DC.

This means that, by the alternate interior angles theorem?

$\angle \: CAB = 55 \degree$

Also the sum of angles in a triangle should be 180° .

$m \angle \: BCA = 55 \degree + 70 \degree = 180 \degree$

$m \angle \: BCA = 180 - 55 - 70 = 55 \degree$

Since m<BCA=m<CAB=55°, it follows that |AB|=|AC|

Hence triangle ABC is isosceles.

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3 years ago

The answer and how to do it

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Alright, here is how to do it:
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-------------------------
I hope I helped, if I did; please give me brainliest. :)

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KengaRu [80]

Answer:

The answer is 36

Step-by-step explanation:

Let the number be <em>x</em>

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