→ lingkaran ←
Kita anggap QR dan PR menyinggung lingkaran, shg OQR dan OPR siku2 di Q dan P.
QR = √(OP² - OQ²) = 8 cm ✔
Luas ∆OQR = 1/2 × OQ × QR = 24 cm² ✔
Luas layang2 OQRP
= 2 × luas ∆OQR
= 48 cm² ✔
Panjang tali busur PQ
= 2 × OQ × QR / OR
= 9,6 cm ✔
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
→ lingkaran ←
Kita anggap QR dan PR menyinggung lingkaran, shg OQR dan OPR siku2 di Q dan P.
QR = √(OP² - OQ²) = 8 cm ✔
Luas ∆OQR = 1/2 × OQ × QR = 24 cm² ✔
Luas layang2 OQRP
= 2 × luas ∆OQR
= 48 cm² ✔
Panjang tali busur PQ
= 2 × OQ × QR / OR
= 9,6 cm ✔