Question

1
find the missing angle
(triangle with angles 70°, 45°, x°)
options: 65, 115, 45, 70

Explanation:

Step1: Recall triangle angle sum

The sum of angles in a triangle is \(180^\circ\).

Step2: Set up the equation

Let the missing angle be \(x\). Then \(70^\circ + 45^\circ + x^\circ = 180^\circ\).

Step3: Solve for \(x\)

First, calculate \(70 + 45 = 115\). Then \(x = 180 - 115 = 65\).

Answer:

65