Question

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Answer 1

Step-by-step explanation:

1) triangle ABC is an isosceles triangle.

Therefore x=y because AB = AD

x+y+70 = 180⁰

x+x=180⁰-70⁰

2x=110⁰ x=55⁰=y

Similarly in triangle CBD

angle C = angle D because CB = CD

So 65⁰=z

Now

p+65⁰+65⁰=180⁰

p= 180⁰-65⁰-65⁰

p= 50⁰

2) AB/AC = cos30⁰

AB = AC cos30⁰ = 12×underoot3/2 = 10.40 cm

BC/AC = sin30⁰

BC= 12×1/2 = 6cm

Answer 2

Answer:

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