Find the area of a triangle with a=20, b=30, and c=40 a.)400.5 units^2 b.)364.0 units^2 c.)290.5 units^2 d.)284.25 units^2

option C is correct.

Step-by-step explanation:

The area of triangle with sides a, b and c can be found by using formula

We are given:

a= 20

b=30

c=40

Finding s:

Putting values in the formula and solving:

Now, Finding the area:

Putting values in the formula and solving:

So, option C 290.5 units^2 is correct.

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above

answ5

step-by-step explanation:

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