Answer:
76°
Step-by-step explanation:
The sum of two interior angles in a triangle is equal to an exterior angle that's supplementary to the third interior angle
52° + 12x + 4 = 22x - 4
52 = 22x - 4 - 12x - 4
52 = 10x - 8 add 8 to both sides
60 = 10x divide both sides by 10
6 = x
The measure of angle F is 12x + 4, replace x with the value we found
m<F 12 × 6 + 4 = 76°
80-3x=56, Subtract 80 from each side:
-3x = 56-80
-3x=-24
x will equal 8, hope this helps! Have a BLESSED day! :-)
Answer:
66. Assuming after you substituted 3 in place of x, you followed order of operations, or PEMDAS.
Step-by-step explanation:
6(2x) + 9x +3 = area
6 (2(3)) + 9(3) + 3 = area
6 x 6 + 27 + 3 = area
36 + 30 = 66
area = 66
