Question

In a ∆ABC, find the measures of the angles of the triangle formed by joining the mid-points of the sides of the triangle.

Answer 1

1%4. The angle of big Angle

Answer 2

Answer:

Step-by-step explanation:Area of cross section of river= 2 x 45 = 90 m²

so, water flowing into the sea= area of cross section x rate of flowing water

= 90 x 3000

= 270000 m³

there water flowing per minute= 270000 / 60 = 4500 m³