If p, q, r and s, the measures of the four angles of a quadrilateral, are in the ratio 3 : 5 : 4 : 6, then the value of 3p+2r is:
Given :
Ratios of angles a quadrilateral : p:q:r:s = 3:5:4:6
Formula Used:
Sum of interior angle of quadrilateral = 360o
Solution:
Angles p = 3x, q = 5x, r = 4x and s = 6x
3x + 5x + 4x + 6x = 360
18x = 360
x = 20
p = 60 & r = 80
3p + 2r = 3 60 + 2 80 = 180 + 160 = 340o
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