“y” is a part of a straight angle, so
131 + y = 180
y = 180 - 131
y = 49 [degrees].
Answer:
14
Step-by-step explanation:
Answer:
Step-by-step explanation:
f+t=40 and 4f+2t=100
4f+2t=120
4f+2t=100
2t=20
t=10
So f=20
angle QRP=180-(64+47)
=69°
Using sin rule,
p/sinP=q/sinQ.
7.6/sin64=q/sin47
q=6.2cm
Using the formula;
area=1/2p*qsinR
we have;
1/2×7.6×6.2×sin69°=21.995
answer= 22
