Question

EXERCISE 16.7
Find the area of a triangle whose base is 6 cm and corresponding height is 4 cm.
Find the area of a triangle whose sides are :
(1) 3 cm, 4 cm and 5 cm.
(i) 29 cm, 20 cm and 21 cm.
() 12 cm, 9.6 cm and 7-2 cm.
Find the area of a triangle whose sides are 34 cm, 20 cm and 42 cm. Hence, find the
length of the altitude corresponding to the shortest side.
The sides of a triangular field are 975 m, 1050 m and 1125 m. If this field is sold at the
rate of 1000 per hectare, find its selling price.
[1 hectare = 10000 m2
The base of a right angled triangle is 12 cm and its hypotenuse is 13 cm long. Find its
area and the perimeter.
Find the area of an equilateral triangle whose side is 8 m. Give your answer correct
to two decimal places.
If the area of an equilateral triangle is 81 13 cm2, find its perimeter.
If the perimeter of an equilateral triangle is 36 cm, calculate its area and height.
(1) If the lengths of the sides of a triangle are in the ratio 3: 4:5 and its perimeter i​

Answer 1

Answer:

Answer for the first one -

Step-by-step explanation:

Refer to the Attachment ... Hope it helps you ....