Question

7. Two sides of a triangle are 8 cm and 5 cm and the perimeter of the triangle is 20 cm.
Find the third side of the triangle.


8. Meena paid 250 for a sari after a discount of 40 on its marked price. Find the marked
price of the saree. Express it as an equation and solve it.​

Answer 1

Answer:

7.8+5is13..

therefore... 20-13....is....7.....

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Here is your answer

side 1 = 8cm

side 2 = 5cm

side 3= x

Perimeter of triangle = 20 cm

side 1 + side 2 + side 3 = perimeter

8cm + 5cm + x = 20

13 + x = 20

x = 20 - 13

x = 7

therefore, 3 side of triangle is 7cm.

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