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Please help me (show ur solution)​

Please help me (show ur solution)​-example-1

1 Answer

4 votes

Answer:

12) x = 24

13) x = 35

Explanation:

A cyclic quadrilateral is a quadrilateral drawn inside a circle where every vertex touches the circumference of the circle.

The opposite angles in a cyclic quadrilateral add up to 180°

Question 12

⇒ (4x + 9) + (3x + 3) = 180

⇒ 4x + 9 + 3x + 3 = 180

⇒ 4x + 3x + 9 + 3 = 180

⇒ 7x + 12 = 180

⇒ 7x + 12 - 12 = 180 - 12

⇒ 7x = 168

⇒ 7x ÷ 7 = 168 ÷ 7

⇒ x = 24

Question 13

⇒ (3x + 2) + (3x - 32) = 180

⇒ 3x + 2 + 3x - 32 = 180

⇒ 3x + 3x + 2 - 32 = 180

⇒ 6x - 30 = 180

⇒ 6x - 30 + 30 = 180 + 30

⇒ 6x = 210

⇒ 6x ÷ 6 = 210 ÷ 6

⇒ x = 35

User K Prime
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