Question

tolong bantu jawab secepatnya ya pake cara​

Answer 1

Jawaban:

9. hipotenusa= √12²+5²= √144+25=√169= 13 cm

keliling= 5 cm+12 cm+13 cm= 30 cm

luas= ½ x alas x tinggi= 1/2 x 12 x 5= 6 x 5= 30 cm²

10. hipotenusa= √15²+8²= √225+64= √289= 17 cm

keliling= (10x2)+(17x2)= 20+34= 54 cm

luas= ½ x diagonal 1 x diagonal 2= 1/2 x 15 x 8= 15 x 4= 60 cm²

11. L= 1/2 x 14 x 8= 7 x 8= 56 cm²