18. Given PQ | BR. Then find the measure of x​

∠x = 70°

Step-by-step explanation:

Given that PQ||BR

Line PQ and BR with transversal AC,

∠x + ∠ACR = 180°     {Co-interior angles}

⇒∠x + 110° = 180°       {From what I can see it looks like 110.}

⇒∠x = 180° - 110°

⇒∠x = 70°

a² + b²= c²

24² + 7² = c²

c= 25