Hitunglah keliling dan luas bangun segitiga jika diketahui : A) a=30cm, t=17cm B) a=50cm, t=20cm C) a=45cm, t=22cm D) a=90cm, t=32cm

A. Keliling = AB + BC + AC
= 30 + 17 + 17
= 64 cm

B. Keliling = AB + BC + AC
= 50 + 20 + 20
= 90 cm

C. Keliling = AB + BC + AC
= 45 + 22 + 22
= 89 cm

D. Keliling = AB + BC + AC
= 90 + 32 + 32
= 154 cm

semoga jawabannya betul dan maaf kalo salah ^_^