Question

2. The area of a square is 121 m'. Its side is
3. Find the perimeter of the quadrilateral with sides 5 cm, 7 cm, 9 cm and 11 cm
4. Find the area of a triangle with a base of 20 cm and a height of 30 cm
5. The area of rectangle whose length is 15 cm and breadth is 6 m
6. The height in the area of parallelogram is ----
7. Find the perimeter of a triangle with sides 4 cm, 6 cm and 10 cm

with the formulas​

Answer 1

2.Area of square = Side^2

121=side^2

side=√121

side = 11 cm

3.The formula to find the perimeter of the quadrilateral = sum of the length of all the four sides. Here the lengths of all the four sides are 5 cm, 7 cm, 9 cm and 11 cm. 2. The perimeter of the quadrilateral is 50 cm and the lengths of three sides are 9 cm, 13 cm and 17 cm.

4.Area=B×H

20×30

300 cm^2

5.Area of rectangle = L×B

L= 15

B= 6

then area = 15×6 = 90.

7.Perimeter of triangle=Plus of all 3 sides

4+6+10=20