12. In triangle PQR, angle Q = angle R=45° and QR = 10 cm.
Find its area.
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1
Answer:
it is a right angle triangle
now sin 45=pr/10 so pr=10/√2
also triangle is isoceles so pq=pr=10√2 so area is 1/2 x 200=100
Answered by
4
Answer:
In triangle PQR
Q=45degree
R=45degree
QR=10cm
area of the triangle=½into base into height
=½ into 10into(45into45)
=5 45into45
=5 into 2025
Answer=10125sqcm
Step-by-step explanation:
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