Question

2. The area of A ABC is 8 cm² in which AB = AC = 4 cm and ZA= 90°.
12.2
Write True or False and justify your answer:
The area of a triangle with base 4 cm and height 6 cm is 24 cm”.
5
3. The area of the isosceles triangle is
4
cm², if the perimeter is 11 cm and the
base is 5 cm.
4. The area of the equilateral triangle is 2073 cm whose each side is 8 cm.
5. If the side of a rhombus is 10 cm and one diagonal is 16 cm, the area of the
rhombus is 96 cm.
6. The base and the corresponding altitude of a parallelogram are 10 cm and 3.5 cm,
respectively. The area of the parallelogram is 30 cm.
7. The area of a regular hexagon of side 'a' is the sum of the areas of the five
equilateral triangles with side a.
:. The cost of levelling the ground in the form of a triangle having the sides 51 m,
37 m and 20 m at the rate of Rs 3 per m’ is Rs 918.
In a triangle, the sides are given as 11 cm, 12 cm and 13 cm. The length of the
altitude is 10.25 cm corresponding to the side having length 12 cm.​

Answer 1

Answer:

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