(a)
A right angle sums to 90
6x + 4x + 10 = 90
10 x = 80
x = 8
(b) straight line = 180
5x + 13 + 3x + 7 = 180
x = 20
(c) Sum of triangle angles = 180
3x + 5 + 2x + 18 + 2x + 17 = 180
x = 20
(d) Sum of two angles in right angle = 90
90 = x + 30
x = 60
24,000,000 because 600,000 is more than 1/2 1,000,000 so you round up.
Answer:
B and D
Step-by-step explanation:
quadrilaterals only have 4 sides hence the prefix quad
Is the answer 240.is that one of your options
