Pablo creates a design that is made up of 3 rectangles and 2 straight lines, as shown below.
What is the size of angle \(x^{\circ}\)? (3 marks)
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\(\text{Isosceles triangle}\ \ \Rightarrow\ \ \text{angles opposite equal sides are equal} \)
\(\text{Since there is 180° in a straight line:}\)
| \(x + 45\) | \(= 180\) |
| \(x^{\circ}\) | \(= 135^{\circ}\) |