Plz help will mark you as brainliest(plz answer 42 and 43
1 answer:
Answer:
Step-by-step explanation:
Sides are 120 m, 170 m, 250 m
<h3>41.</h3>
<u>S is the semi-perimeter and is equal to:</u>
- s = (a + b + c)/2 = (120 + 170 + 250)/2 = 270 m
Correct choice is D
<h3>42.</h3>
The area is easy to calculate using the Heron's formula, since we have all three side lengths known.
Correct choice is B
<h3>43.</h3>
<u>Perimeter is:</u>
- P = a + b + c = 120 + 170 + 250 = 540 m
Correct choice is A
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True
False
False
True
False
False
There both in the thousands place
Answer:
The approximate measure of angle K is 34°
Step-by-step explanation:
In ΔJKL
∠L = 105°
JK = 4.7
JL = 2.7
Sine Rule:
So,
K ≈ 34°
So, Option B is true
Hence The approximate measure of angle K is 34°
That is 5*20 is 100 and the inverse of 5 is 25
