kak tolong caranya kak

3. luas 1 = π X r X r
= 22/7 X 7 cm X 7 cm
= 154 cm²
luas 2= s X s
= 28 cm X 28 cm
= 684 cm²
luas 3=a X t ÷ 2
=24 cm X 28 cm ÷ 2
=336 cm²
luas gabungan = l 1 +l 2+ l 3
= 154 + 684 + 336
= 1174 cm²

4. luas 1 = p X l
= 25 cm X 5 cm
= 125 cm ²
luas 2 = p X l
= 35 cm X 15 cm
= 525 cm²
luas gabungan = l 1 + l 2
= 125+ 525
= 620 cm ²



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