Question

find the unknown marked angles in each of the following figures.
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Answer 1

Step-by-step explanation:

in first one it is 135

in second one y is 40 and x is 35

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Answer 2

iii ) AB = BC

that's why , < A = < C

so also we know that ,

< A + < B + < C = 180°

< A + 90° + < A = 180°

2 < A = 180° - 90°

2 < A = 90°

< A = 90° / 2

< A = 45° = < C

now , finally we know that

< DAB = 180°

SO,

< DAC + < CAB = < DAB

X + < A = 180°

X + 45° = 180°

X = 180° - 45°

X = 135°

I hope this will be help you