2. In APQR, P:Q:R = 1:2:3 and altitude
from P to QR is 4 cm. Find the perimeter
of APOR.
Answers
Answered by
1
Answer:
Step-by-step explanation:
q:r=2:9/8, p:q:r=3/4:2:9/8
Answered by
4
Answer:
Perimeter is 4+4√3
Step-by-step explanation:
P=x , Q=2x R=3x
x+2x+3x=180
6x = 180
x = 30
therefore, P=30
Q=60
R=90
tan 30 = RQ/PR
∴∠1/√3 = RQ/4
RQ = 4 / √3
by pythagaros theroem
4² + ( 4/√3)² = PQ²
PQ = 8/√3
Perimeter = PQ+QR+PR
= 8/√3 + 4/√3 + 4
= 12/√3 + 4
= 4√3+12/√3
=4√3+4√3√3/√3
=√3(4+4√3)/√3
= 4+4√3
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