Question

Green 8
14 cm
2. The perimeter of a triangle is 30 em. One side of a triangle is 4 cm longer than the
smaller side and the third side is 6 cm less than twice the smaller side. Find the
area of the triangle
3. The area of a trapezium is 475 eur and the height is 19 cm. Find the lengths of its
two parallel sides if one side is 4 cm greater than the other
4. A rectangular plot is given for constructing a house, having a measurement of 40m
long and 15 m in the front. According to the laws, a minimum of 3 m, wide space
should be left in the front and back ench and 2 m wide space on ench of other
sides. Find the largest area where house can be constructed.
5. A field is in the shape of a trapezium having parallel sides 90 m and 30 m. These
sides meet the third side at right angles. The length of the fourth side is 100 m. Ir
it costs Rs 4 lo plough Im of the
field, find the total cost of ploughing
the field.
6. In Fig. 12.5. A ABC has sides
AB = 7.5 cm, AC = 6,5 cm and
BC = 7 cm. On base BC a
23 cm
6.5
purallelogram DBCE of same area
as that of 8 ABC is constructed.
Find the height DF of the
parallelogram.
7. The dimensions of a rectangle
ABCD are 51 cm x 25 cm. A
trapezium POCD with its parallel
sides QC and PD in the ratio 9 : 8. is cut off from the rectangle as shown in the
Fig. 126. If the area of the trapezium POCD is the part of the area of the rectangle,
find the lengths QC and PD.
25
Q
51 cm
is made on a rectangular ile of dimensions 50 cm x 70 cm as shown id
un shows 8 triangles, ach of sidhs 36 cm, 17 cm and 25 cm
od the remaining area of the tile.
ir​

Answer 1

Answer:

I can't answer all these questions