Question

Panjang sisi sisi belah ketupat pqrs=5cm dan panjang diagonal pr=6cm hitunglah panjang diagonal qs dan luas belah ketupat pqrs

Answer 1

P diagonal qs= 8
Luas= d1×d2/2
=6×8/2
=48/2
=24

Answer 2

5² = x² + 3²
25 = x² + 9
25 - 9 = x²
16 = x²
√16 = x
4 =x
4x2 = 8 (diagonal 2)

Luas = d1 x d2 /2
Luas = 8 x 6 / 2
Luas = 48 :2 = 24