Answer:
Step-by-step explanation:
number of side = n =7
Sum of all the angles of given polygon = (n -2)*180 = 5 *180 = 900
x + 140 +133 +145 + 117 + 119 + 125 = 900
x + 779 = 900
x = 900 - 779
x = 121
Answer:
a) x = 260
b) g = 218
c) z = 30
d) h = 5
Step-by-step explanation:
a) 
Predict a number; let's say x = 225

Too low; try with a higher number; let's say x = 270

Too high, we're closer.
x = 260

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b) 
let's say g = 230

Too high. Try g = 221

We're almost there. Let's try with g = 218

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c) 
Let's try with z = 15

Too low; try a higher number. z = 30

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d) 
Let's try with h = 6

Too high; let's try with h = 5

Answer:
b=112°
Step-by-step explanation:
two complementary angles
b=180°-68°=112°
sum of 2 angles is
x= 35°+25°=60°
4 x 10^6 is the answer to the questioin