10-a-Day the Easy Way: Fuss-free Recipes & Simple Science to Transform your Health

10-a-Day the Easy Way: Fuss-free Recipes & Simple Science to Transform your Health

Matematika Tolong jawabannya diberikan cara dan jangan ngasal​

Tolong jawabannya diberikan cara dan jangan ngasal​

Penjelasan dengan langkah-langkah:

a² = c² - b²

a² = 13² - 5²

a² = 169 - 25

a = √144

a = 12

L = p × l

L = 28 × 10

L = 280

L∆ = 1/2 × a × t

L∆ = 1/2 × 12 × 5

L∆ = 30

Luas daerah :

= 280 - 30

= 250 cm² ( B )