Question

Find the missing angle in a triangle with the given sides.

Answer 1

Answer:

$\angle$Z = 1°

Step-by-step explanation:

Since the shape is a triangle it means that all it's interior angles sum to 180°

To find the missing angle sum up the known angles and subtract them from 180°

That's

$\angle$X + $\angle$Y + $\angle$ Z = 180°

89° + 90° + $\angle$Z = 180°

$\angle$Z = 180 - 179°

We have the final answer as

$\angle$Z = 1°

Hope this helps you

Answer 2

Answer:

1°

Step-by-step explanation:

Given angles

• <x=89°
• <y=90°

We know that in a triangle

• Sum of angles=180°

$\rm \mapsto \angle x + \angle y + \angle z = 180 \\ \rm \mapsto89 + 90 + \angle z = 180 \\ \rm \mapsto179 + \angle z = 180 \\ \rm \mapsto\angle z = 180 - 179 = 1$