Question

in a quadrilateral abcd , angle C=64 angle D=angle C -degree angle A =5(a+2) degree and Angle B = 2 ( 2a+7) degree calculate angle A

Answer 1

first let make the figure

c=d=64 given

angle a=5(a+2)

angle b =(2a+7)

using angle sum property

sum of all interior angle of a quadilateral = 360

angle a +angle b +angle c+angle d=360

5a+2+4a+14+64+64=360

9a+144=360

9a=360-144

9a=216

a=216/9

a=24

angle a = 5a+10=5×24+10=130degree

Answer 2

Answer:

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