Question

step by step explaination please
figure 9 is a rhombus ABCD in which ABD= 40°. find BAC, BCD , ADC.
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Answer 1

Answer:

Diagonals of rhombus bisect eachother at right angle

In ∆AOB

angle B + angle O + angle A = 180°

90°+40°+ angle A = 180°

angle A = 180-130 = 50°