HELP. photo added. answers are 45, 20 , it 22.5
1 answer:
Answer:
22.5°
Step-by-step explanation:
We know that the measure of straight line is 180° . Therefore the sum of all angles will be 180° .
⇒ 90° + x + 3x = 180°
⇒ 90° + 4x = 180°
⇒ 4x = 90°
⇒ x = 90°/4
⇒ x = 2 2 . 5 °
<h3>
<u>Hence</u> <u> </u> <u>the</u> <u> value</u> <u> of</u> <u> x</u> <u> is</u> <u> </u> <u>2</u> <u>2</u> <u>.</u> <u>5</u> <u>°</u> <u> </u> </h3>
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