Nilai t
t² = 20² - 12²
t² = 400 - 144
t² = 256
t = √256
t = 16 cm
Kelililing jajargenjang
K = 2(25 cm) + 2(20 cm)
K = 50 cm + 40 cm
K = 90 cm
Luas jajargenjang
L = ½ × 25 × 16
L = 25 × 8
L = 200 cm²
Nilai x
x² = 25² - 20²
x² = 625 - 400
x² = 225
x = √225
x = 15 cm
Keliling belah ketupat
= 4(25 cm)
= 100 cm
Luas belah ketupat
= ½ × 40 × 30
= 20 × 30
= 600 cm²
Untuk gambar trapesium belum jelas yang diketahui, jadi belum dapat ditentukan.
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Nilai t
t² = 20² - 12²
t² = 400 - 144
t² = 256
t = √256
t = 16 cm
Kelililing jajargenjang
K = 2(25 cm) + 2(20 cm)
K = 50 cm + 40 cm
K = 90 cm
Luas jajargenjang
L = ½ × 25 × 16
L = 25 × 8
L = 200 cm²
________
Nilai x
x² = 25² - 20²
x² = 625 - 400
x² = 225
x = √225
x = 15 cm
Keliling belah ketupat
= 4(25 cm)
= 100 cm
Luas belah ketupat
= ½ × 40 × 30
= 20 × 30
= 600 cm²
___________
Untuk gambar trapesium belum jelas yang diketahui, jadi belum dapat ditentukan.