Question

Tolong nomor 23 dan 24 pake cara (rumus) makasih

Answer 1

== Nomor 23 ==

Keliling persegi : 60 = 160 pohon
Keliling persegi = 160 × 60
Keliling persegi = 9.600 cm²

K = 4s
9.600 = 4s
s = 2.400 cm
= 24 m (C)

== Nomor 24 ==

L persegi panjang 1:
= p × l
= 45 × 25
= 1.125 cm²
L persegi panjang 2:
= p × l
= 14 × 10
= 140 cm²

Alas segitiga:
= 45 - 10
= 35 cm

L segitiga:
= 1/2 × a × t
= 1/2 × 35 × 14
= 245 cm²

L total = 1.510 cm² (D)