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aroslin001
#19- i
USING TOOLS The sum of the angle measures of a quadrilateral is 360°. Write and solve an equation to find the value of x.
full
100
120
100
The equation is
= 360
X
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White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.