Hitung lah luas segitigaPQR PQ=35cm Qr=18cm SudutQ=53drajat

PQ = 35 cm QR = 18 cm
PR= ?
PR = √PQ²-QR²
=√35²-18²
= √1225-324
=√901
=30,01 = 30 cm
PQ = sisi miring
QR = alas
PR = tinggi
luas segitiga = ½ × a × t
= ½ × 18 × 30
= 270 cm
jawab ; 270 cm