Question

Write the measure of this missing angle

Answer 1

c= 30

Explanation:

To find the value of c, start by forming an equation using the ∠ sum of ∆ property.

c° +60° +90°= 180° (∠ sum of ∆)

Simplify:

c° + 150°= 180°

c°= 180° -150°

c°= 30°

c= 30

Notes:

• The sum of the angles in a triangle is 180°, which is abbreviated as '∠ sum of ∆'.
• The angle indicated by a square is called a right angle, and has a value of 90°.