Question

c) Rohan was asked to construct a triangle with dimensions 20 cm, 13 cm, 7 cm.
But he was unable to construct. Give reasons.
2200​

Answer 1

Step-by-step explanation:

• 20+13 is not equal to 7
• 13+7=20
• 20+7 is not equal to 13
• So when we add these numbers we should get same answer but we did not get that.
• So it is impossible to construct it

Answer 2

Answer:

Because the sum of two sides of the triangle should be greater than the third side. [TRIANGLE INEQUALITY PROPERTY]

Side 1= 20cm

Side 2= 13cm

Side 3= 7cm

20+13= 33cm> 7cm

20+7= 27cm> 13cm

13+7= 20cm=20cm

Thus, Rohan couldn't construct this triangle.