Question

Plz help will mark you as brainliest(plz answer 42 and 43​

Answer 1

Answer:

• 41. D,
• 42. B,
• 43. A

Step-by-step explanation:

Sides are 120 m, 170 m, 250 m

41.

S is the semi-perimeter and is equal to:

• s = (a + b + c)/2 = (120 + 170 + 250)/2 = 270 m

Correct choice is D

42.

The area is easy to calculate using the Heron's formula, since we have all three side lengths known.

Correct choice is B

43.

Perimeter is:

• P = a + b + c = 120 + 170 + 250 = 540 m

Correct choice is A