Given the following diagram, find the missing measure. m 1 = 30°, m 2 = 45°, m 3 = choices: 30 75 105 150

The sum of the interior angles for a triangle ALWAYS equal 180 degrees. So if M1 = 30 and M2 = 45, then M3 = 105. Hope this answers your question!

Altogether your triangle should equal 180 degrees: so 30+45= 75 then 180-75= 105 which means your answer is 105 degrees

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )