tentukan lebar keliling luas

l² = (2√10)² - 6²
l² = 40 - 36
l² = 4
l = √4
l = 2 cm

K = 2(p + l)
K = 2(6 + 2)
K = 2(8)
K = 16 cm

L = p x l
L = 6 x 2
L = 12 cm²

d² = p² + l²
(2√10)² = 6² + l²
4 x 10 = 36 + l²
40 = 36 + l²
l² = 40-36
l² = 4
l = √4
l = 2 cm

K = (2xp) + (2xl)
K = (2 x 6) + (2 x 2)
K = 12 + 4
K = 16 cm

L = p x l
L = 6 x 2
L = 12 cm²