Question

Please jawab dengan cara ini 6 7 8 9

Answer 1

6) L 1/4 lingkaran = 1/4r²
=1/4×22/7×10²
=78,5

L Δ = 1/2at
=1/2×10×10
=50

L daerah yg diarsir = 78,5 - 50= 28,5

7) keliling lngkaran = d
=22/7×84cm
=264cm

banyak putaran = 264 m ÷ 264 cm
=26400 ÷ 264
= 100

9)∠ABC=1/2AOC
(2p-8)°=1/2(3p+19)°
2(2p-8)=3p+19
4p-16=3p+19
4p-3p=19+16
p=35

∠ABC= 2p-8 = 2(35)-8 = 70-8=62°