Question

5. The base of a triangular field is three times its height. If the cost of cultivating the field at
1080 per hectare is 14580, find its base and height.
6. The area of right triangular region is 129.5 cm². If one of the sides containing the right
angle is 14.8 cm, find the other one.
7. Find the area of a right triangle whose base is 1.2 m and hypotenuse 3.7 m.
8. The legs of a right triangle are in the ratio 3 : 4 and its area is 1014 cm. Find the lengths of
its legs.
9. One side of a right-angled triangular scarf is 80 cm and its longest side is 1 m. Find its cost
at the rate of 250 per m2.
10. Find the area of an equilateral triangle each of whose sides measures (i) 18 cm, (ii) 20 cm.
[Take V3 = 1.73]
11. The area of an equilateral triangle is (16 x 13) cm. Find the length of each side of
the triangle.
12. Find the length of the height of an equilateral triangle of side 24 cm. (Take 13 = 1.731​

Answer 1

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Q) 5

Answer 2

a baby, an animal or a plant in the early stages of development before birth