1.

Two angle of a quadrilateral are 68 degree and 76 degree. If the other two angle are in ratio 5:7,find the measure of each of them

Answer» ONG>ANSWER:

90° ,136°

as

68+76+5x+7x=360

144+12x=360

12x= 216

x=216÷12

x=18

5x = 5×18 =90

7x= 7×18 = 136



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