2. ABCD is a parallelogram and AB = 12cm, AD = 8cm, then perimeters of parallelogram ABCD is:
(A) 20 cm
(B) 40 cm
(C) 60 cm
(D) 80 cm
3. Three angles of a quadrilateral are equal and the fourth angle is equal to 144º. Find each of the equal angles of the
quadrialteral
Answers
Answered by
7
Answer:
b)40cm
3)360-144/3=72°
Answered by
11
2. perimeter of a parallelogram is
2(a+b)
=2(12+8)
=2(20)
=40
3. a+b+c+d=360
3a+144=360
3a=216
a=72
pls mark it as the brainliest
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