Question

the diagram shows a triangle.
what is the value of c?
c = \square^\circ
submit

Explanation:

Step1: Sum triangle angles to 180°

$3c + 2c + 35^\circ = 180^\circ$

Step2: Combine like terms

$5c + 35^\circ = 180^\circ$

Step3: Isolate term with $c$

$5c = 180^\circ - 35^\circ$
$5c = 145^\circ$

Step4: Solve for $c$

$c = \frac{145^\circ}{5}$

Answer:

$29^\circ$