CBSE Class 7 Maths Angle Sum Property of A Triangle

• solve it
  
• what is iscosless triangle
• What is altitude??
• find the angle y in the following figure
  
• of exterior ZA, 10. Calculate the angles of a triangle ABC having 34B = 4ZC and the interior ZA =
• caculate angles of triangle abc having 3 times angle b= 4 times angle c and interior angle a =4/7  of its exterior angle
• The two angles of a triangle are equal and third measures 70degree . Find the measures of each of the unknown angles    
• how to proof that the sum of the angles in a triangle is 180^0
• Find the value of x and y in the following figure 
  
• Triangle ABC is isosceles with AB=BC. If angle B is twice the measure of angle A, then find all the angles of the triangle

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