Question

layang-layang PQRS PR=16 cm
ST=6cm
TQ=15cm
hitung:
A.panjang SR!
B.panjang QR!
C.keliling layang layang!​

Answer 1

Verified answer

Jawaban singkat:

A. panjang SR = 10 cm

B. panjang QR = 17 cm

C. Keliling layang-layang = 54 cm

Penjelasan tambahan:

Bila PR = 16 cm, maka:

PT = 8 cm

TR = 8 cm

A. panjang SR² = ST² + TR²

panjang SR² = (6 cm x 6 cm) + (8 cm x 8 cm)

panjang SR² = 36 cm² + 64 cm²

panjang SR² = 100 cm²

panjang SR = [tex]\sqrt{100}[/tex] cm

panjang SR = 10 cm

B. panjang QR² = TR² + TQ²

panjang QR² = (8 cm x 8 cm) + (15 cm x 15 cm)

panjang QR² = 64 cm² + 225 cm²

panjang QR² = 289 cm²

panjang QR = [tex]\sqrt{289}[/tex] cm

panjang QR = 17 cm

C. Keliling layang-layang = 2 x (SR + QR)

Keliling layang-layang = 2 x (10 cm + 17 cm)

Keliling layang-layang = 2 x 27 cm

Keliling layang-layang = 54 cm