Tolong jawab hitunglah keliling dan luasnya Jawab semuanya bonus 20 poin

1. AC²= AB²+BC²
AC² = 8²+6² = 100
AC = 10
Keliling = 6+8+10  = 24 cm
Luas = 1/2 xAB x BC= 1/2 x 8 x 6 = 24 cm²

3.
QR² = 4²+3² = 25
QR = 5

PR² = 16² + 4² = 272
PR = √272 = 4√17

Keliling =  16+3+5 + 4√17 = 24 + 4√17
Luas =  1/2 (16+3)(4) = 38


4. US² =SR² + RU²
US² = (5+3)² + 4² = 64 + 16 = 80
US = 4√5

TU² = TR²+RU²
TU² = 3²+4² = 25
TU = 5

Keliling = US+ST+TU = 4√5 + 5 + 5= (10 + 4√5)
Luas =  1/2  x ST x RU = 1/2 (5)(4)= 10

5.
Keliling = 3 + 4 + 5= 12
Luas = 1/2 x 3 x 4 = 6