Question

The number of terms in the expression 2xy - 5z =———————-

2. The area of a rectangular room is 150 sq.m. If the breadth of the room is 10 m, then perimeter of

the room is ————- m

3. Perimeter of a square is 240 cm.It’s area is ——————

4. The area of a parallegram ABCD in which AB =6.2 cm, and the perpendicular from C on AB is 5

cm is ————————

5. The radius of a circle is 7 cm. It’s circumference is —————.​

Answer 1

1- 3
2- area of rectangular room = L x B
150 = L x 10
150/10 = L
15 = L
Perimeter of the rectangular room = 2[ L + B ]
= 2 [ 15+10]
= 2 [ 25 ]
= 50 m

3- perimeter of square = a^2 { a= side}
240 = a^2

Answer 2

Answer:

1. 2
2. 50 cm
3. 3600 cm²
4. 31cm
5. 44 cm