1.

Fill in the blanks :(i) At least two angles in a triangle are ………… .(ii) One altitude of an ……………. triangle lies outside the triangle.(iii) Sum of any two sides of a triangle is …………. than the third side.(iv) Two angles of an ……….. triangles are equal.(v) The line joining the vertex to the middle point of opposite side of a triangle is called …….. .(vi) The point where three medians of a triangle meet is called ………… .(vii) All three ………… of a triangle pass through the orthocentre of a triangle.

Answer»

(i) Acute angle

(ii) Obtuse angle

(iii) greater

(iv) isosceles triangle

(v) median

(vi) centroid

(vii) altitudes



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