Question

In quadrilateral ABCD, ZC = 64°, ZD = ZC - 8°; ZA = 5(a + 2) and
ZB = 2(2a + 7). Calculate ZA.
c
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Answer 1

Answer:

angle C is 64°

angle D is Angle C -8° = 56°

angle A = 5(a+2)

angle B= 2(2a+2)

Step-by-step explanation:

A+B+C+D= 360°

5(a+2)+2(2a+7)+64°+56°=360°

5a+10+4a+14+64°+56°=360°

144°+9a=360°

9a=216

a=24°

angle A = 5(a+2)=5×26=13

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