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=¼.2πr=½.22/7.21=11.3=33 cm
keliling 2 buah ¼ lingkaran dgn r=7
=2.¼.2πr=22/7.7=22 cm
keliling 2 buah ½ lingkaran dgn r=3,5
=2.½.2πr=2.22/7.3,5=22 cm
sisi miring dgn a=14 dan t=14
=√(a²+t²)
=√(14²+14²)
=√392
=√196√2
=14√2 cm
Jumlah =33+22+22+14√2=77+14√2 cm
Jawaban E, insya Allah benar