Answer:
a= 120
b= 60
Step-by-step explanation:
Given the measure of side a, b and c of the triangle, the measure of angle C to the nearest tenth is 104.5°.
<h3>What is the measured angle C?</h3>
From the law of cosines;
cosC = ( a² + b² - c² ) / 2ab
Where C is the angle C and a, b, and c are the three sides of the triangle.
Given the data in the question;
- Side a = 2
- Side b = 3
- Side c = 4
- Angle C = ?
Using law of cosine;
cosC = ( a² + b² - c² ) / 2ab
We substitute the values into the equation.
cosC = ( 2² + 3² - 4² ) / ( 2 × 2 × 3 )
cosC = ( 4 + 9 - 16 ) / ( 12 )
cosC = -3 / 12
cosC = -0.25
We find the inverse of cosine.
C = cos⁻¹( -0.25 )
C = 104.477°
C = 104.5°
Given the measure of side a, b and c of the triangle, the measure of angle C to the nearest tenth is 104.5°.
Learn about cosine rule here: brainly.com/question/20839703
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Answer:
35.75 meters squared
Step-by-step explanation:
The area of a trapezoid is denoted by: , where b_1 and b_2 are the bases and h is the height.
Here, the two bases are 7 1/2 and 5.5 meters and the height is 5.5. So, just plug in the values:
7 1/2 is the same as 7.5:
Thus, the area is 35.75 meters squared.
Hope this helps!
Answer:
984760
Step-by-step explanation: