Question

suppose angle x in the triangle (not drawn to scale) is 7 times the size of angle y.
write an equation to represent the fact that angle x is 7 times the size of angle y.
write the equation to match the problem statement exactly. do not rearrange it.
write an equation, in terms of x and y, for the sum of the angles in the triangle.

Explanation:

Step1: Recall the sum of angles in a triangle

The sum of angles in a triangle is \(180^{\circ}\). In this right - angled triangle, one angle is \(90^{\circ}\), and the other two angles are \(x\) and \(y\).

Step2: Write the equation

So, \(x + y+90 = 180\).

Answer:

\(x + y+90 = 180\)