Question

3. find the area of the triangle whose sides are 42cm 34cm and 20 CM in length hence find the height corresponding to the longest side
4. Calculate the area of the triangle whose sides are 18 cm, 24 cm and 30 cm in length. Also, find the length of the altitude corresponding to
5. 105 m in length. Find the height corresponding to the longest side.
6. The sides of a triangle are in the ratio 5 : 12 : 13 and its perimeter is 150 m. Find the area of the triangle.
7. The perimeter of a triangular field is 540 m and its sides are in the ratio 25:17:12. Find the area of the field. Also, find the cost of ploughing the field at 5 per m?
8. Two sides of a triangular field are 85 m and 154 m in length and its perimeter is 324 m. Find (i) the area of the field and (ii) the length of the perpendicular from the opposite vertex on the side measuring 154 m.
9. Find the area of an isosceles triangle each of whose equal sides measures 13 cm and whose base measures 20 cm.
10. The base of an isosceles triangle measures 80 cm and its area is 360 cm? Find the perimeter of the triangle.
11. The perimeter of an isosceles triangle is 32 cm. The ratio of the equal side to its base is 3:2. Find the area of the triangle. Ratio of sides = 3:3:2. HINT​

Answer 1

Step-by-step explanation:

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