luas bangun sesuai gambar di atas adalah

Please, let me answer your question :)
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Persegi :
- s = 18 cm

2 Segitiga Siku - Siku :
- a = 14 cm
- t = 18 cm

Ditanya :
- L :..?

LP = s x s
LP = 18 x 18
LP = 324 cm²

LSS = ½ x a x t
LSS = ½ x 14 x 18
LSS = 7 x 18
LSS = 126 cm² x 2
LSS = 252 cm²


Total = 252+324= 576 cm².

Sebenarnya bisa digabung menjadi Trapesium. Namun, saya mengikuti ukuran2 yg ada di gambarnya saja.

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Hopefully this is the best for you. And please, make Brainly great again!

Heil Manstein!

L = 1/2 * jss * t
L = 1/2 *(18+46)*18
L = 1/2 * 64 * 18
L = 1/2 * 1152
L = 576 cm