Step-by-step explanation:
the sum of all angles in a triangle is ALWAYS 180°.
and by using the word "congruent" : for angles that only means they are equally large.
we know the third angle.
so,
180 = P + Q + R = 2×P + 28.45
(because P = Q)
2×P = 151.55
P = Q = 151.55 / 2 = 75.775°
The sum of all exterior angles is always 360 degrees.
360/40=9 sides
the polygon has 9 sides.
Answer:
16/5
Step-by-step explanation:
3.2 = 3 + 0.2= 3+2/10=3+1/5=16/5
pls mark as brainliest
to do this just divide 9.56 by 4 to get $2.39