tolong di jawab dengan cara kerjanya ya. poin banyak

1) L = p × l
60 = p × 4
p = 60 ÷ 4
p = 15 m

2) L = π × r²
154 = 22/7 × r²
154 × 7 = 22 r²
1.078 = 22 r²
r= √( 1.078 ÷ 22)
r = √49
r = 7 cm

3) L = a × t
375 = 25 × t
t = 375 ÷ 25
t = 15 cm

4) L = ½ × a × t
90 = ½ × a × 12
90 = 6 × a
a = 90 ÷ 6
a = 15 cm

5) L = s²
625 = s²
s = √625
s = 25 cm

6) d = 10 cm
r = 5 cm
L = ½ × π × r²
= ½ × 3,14 × 5 × 5
= 39,25 cm²

7) LP = s²
= 14 × 14
= 196 cm²
L lingkaran
= π × r²
= 22/7 × 7 × 7
= 154 cm²
L yg diarsir
= 196 - 154
= 42 cm²

8) d = 40 cm
r = 20 cm
L = π × r²
= 3,14 × 20 × 20
= 1256 cm²

9) L = ½ × d1 × d2
= ½ × 38 × 14
= 266 cm²

10) Luas segitiga