Jawaban:

• layang - layang

K = 84 cm

L = ?

• Belah ketupat

K = 20 mm

L = 24 mm²

• Trapesium

K = 24 km

L = 30 km²

• Jajar genjang

K = 34 dm

L = 50 dm²

• Segitiga

K = 16 m

L = 12 m²

Penjelasan dengan langkah-langkah:

• layang layang

K = 2 x ( a + c )

= 2 x ( 5 + 37 )

= 2 x 42

= 84 cm

L = ( formatnya tidak ada untuk diagonal )

• Belah ketupat

K = 4 x S

S² = a² + b²

= 3² + 4²

= 9 + 16

= 25

S = √25

= 5 mm

K = 4 x 5

= 20 mm

L = ½ x d1 x d2

= ½ x 6 x 8

= 6 x 4

= 24 mm²

• Trapesium

K = Jumlah seluruh sisi

= 9 + 5 + 6 + 4

= 14 + 10

= 24 km

L = ½ x ( a + b ) x t

= ½ x ( 9 + 6 ) x 4

= ½ x 15 x 4

= 15 x 2

= 30 km²

• Jajar genjang

K = 2 x ( a + b )

= 2 x ( 7 + 10 )

= 2 x 17

= 34 dm

L = a x t

= 10 x 5

= 50 dm²

• Segitiga

K = a + b + c

= 5 + 5 + 6

= 10 + 6

= 16 m

L = ½ x a x t

t² = c² - a²

= 5² - 3²

= 25 - 9

= 16

t = √16

= 4 m

L = ½ x 6 x 4

= 3 x 4

= 12 m²

Semoga dapat membantu

dan mohon maaf bila salah