The length of QR in triangle PQR is 6.7 √2 m .
We are given that:
In triangle PQR, we have:
P = 90° and PR = 6.7 m .
Since, it is an isosceles triangle, the other angles will be equal to = 45° ( as the other two triangles will be equal and the sum of angles is 180°) .
We have to find the length of QR
We know that sin θ = Perpendicular / hypotenuse
sin 45° = 6.7 m / H
1 / √2 = 6.7 m / H
H = 6.7 √2 m
Therefore, we get that, the length of QR in triangle PQR is 6.7 √2 m .
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