Tolong bantu aku dong teman teman brainly yg baik

A. L = keliling segitiga × t × (2 × luas segitiga)

= (7 + 24) × 20 × (2 × 1/2 × 7 × 24)

= 31 × 20 × (2 × 1 × 7 × 12)

= 31 × 20 × 168

= 104.160 cm^2


B. V = La × T

= 1/2 × A × T × T

= 1/2 × 7 × 24 × 20

= 1 × 7 × 12 × 20

= 1.680 cm^3